Low Dose Primobolan With TRT. Benefits, Risks, Protocols

Detailed breakdown of low dose Primobolan combined with TRT. Hormone effects, risks, and real world protocols.
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Directionally, how would legitimate primobolan affect one's bloodwork if added to consistent testosterone dose after a reasonable length of time, say 4 - 6 weeks?

E.g., Adding 200mg p/w of Primo onto 150mg p/w of Test C while already being on the same Test C dosage for a prolonged period if using a testosterone LC/MS immunoassay.

I'm sure there must be some documentation that exists explaining the impact on free and total test, estradiol, RBC, hematocrit, SHBG, progesterone, prolactin, HDL etc, when the dosage of Test is kept the same.

I know some members who are on TRT have experience with primo and may know top of mind. If anyone can point me to any resources or know the answers, I'd appreciate it.

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From Admin:

What Are the Benefits and Risks of Adding Low-Dose Primobolan to a TRT Protocol?
Curated By Nelson Vergel | ExcelMale.com | Updated May 2026​

If you spend any time in TRT communities, you have heard the term "TRT Plus" -- a practice where men on a stable testosterone replacement protocol add a secondary anabolic compound to pursue specific goals: leaner body composition, lower estradiol without an aromatase inhibitor, improved muscle quality, or connective tissue support. Among the most discussed candidates is Primobolan (metenolone enanthate), a dihydrotestosterone (DHT)-derived androgen with a reputation for mild side effects, zero aromatization, and clean, dry gains.

But the conversation around Primobolan and TRT carries significant caveats that get lost in forum enthusiasm. Clinical research on this specific combination is essentially nonexistent. Primobolan has no FDA-approved product currently available in the United States, and no compounding pharmacy formulary includes it. What we know comes from pharmacological principles, older AAS literature, and the accumulated experience of men in communities like this one who have monitored their own bloodwork carefully.

This guide synthesizes what the evidence and community data actually tell us -- including the critical lab testing issue that trips up most men who try this combination, the real pattern of how Primobolan shifts key markers, and how it compares to more accessible TRT add-ons like nandrolone and masteron.

Key Takeaways • Primobolan (metenolone enanthate) does not aromatize to estrogen and acts as a mild aromatase inhibitor -- a useful property for some men on TRT, but one that carries a real risk of crashing estradiol too low. • Standard testosterone immunoassay tests will misread Primobolan as testosterone, producing falsely elevated total and free T results. You must use LC/MS (liquid chromatography/mass spectrometry) for accurate monitoring. • There are no controlled clinical trials on adding Primobolan to a stable TRT protocol. The evidence base consists of pharmacological principles and community-reported data. • Primobolan reduces HDL cholesterol and suppresses natural testosterone production, both of which require monitoring with any use. • Metenolone is not available via FDA-approved products or licensed compounding pharmacies in the US -- distinguishing it from nandrolone and oxandrolone, which can be prescribed. • Men in our forum using this combination typically start at a 1:1 to 1.5:1 testosterone-to-Primobolan ratio and wait 6-8 weeks before evaluating bloodwork.

What Is Primobolan and How Does It Differ from Testosterone?​

Primobolan is the brand name for metenolone enanthate in its injectable form (metenolone acetate is the oral version). Developed in the 1960s, it was originally used medically to treat anemia from bone marrow failure and muscle-wasting conditions. The drug was introduced in the United States under the name Nibal Depot in 1962 but was soon discontinued domestically, while remaining available in parts of Europe under the Primobolan Depot name.

Chemically, metenolone is a derivative of dihydrotestosterone (DHT), modified at the C1 position to resist the enzyme 3alpha-hydroxysteroid dehydrogenase (3alpha-HSD). This modification is important: most DHT derivatives are rapidly inactivated in skeletal muscle by this enzyme, which is why compounds like mesterolone (Proviron) have weak anabolic effects despite strong androgenic ones. Metenolone's resistance to 3alpha-HSD metabolism allows it to retain meaningful anabolic activity in muscle tissue.
Key biochemical properties that differentiate Primobolan from testosterone:

• No aromatization: Metenolone does not convert to estrogen under aromatase enzyme activity. This eliminates the estrogen-related side effects -- water retention, gynecomastia -- that many men manage on TRT.
• Weak androgenic profile: Its androgenic activity is considerably lower than testosterone, reducing the theoretical risk of androgenic side effects like scalp hair loss or prostate stimulation, though individual genetics still play a major role.
• Very low SHBG binding: Metenolone has approximately 16% of testosterone's affinity for sex hormone-binding globulin (SHBG), and only about 3% of DHT's affinity. This means it does not meaningfully displace testosterone from SHBG the way masteron or nandrolone do.
• No liver toxicity (injectable form): Unlike 17-alpha-alkylated oral steroids, injectable metenolone enanthate is not hepatotoxic at clinical doses.

What Are the Reported Benefits Men Seek from Adding Primobolan to TRT?​

The benefits most commonly discussed in TRT communities -- and the reasons men consider this combination -- fall into several categories. It is worth being explicit that most of these are based on pharmacological reasoning and anecdotal reports, not randomized controlled trials.

Does Primobolan Help Control Estradiol Without an Aromatase Inhibitor?​

This is one of the most frequently cited reasons men explore Primobolan as a TRT add-on. Because it does not aromatize and appears to have mild anti-estrogenic properties -- likely through competitive interaction at the androgen receptor or mild aromatase inhibition -- it can functionally reduce circulating estradiol.

Members in our community have documented this effect clearly. One member reported that adding just 100mg of Primobolan per week to their 125mg testosterone protocol "crashed my estrogen to single digits." This illustrates both the potential utility and the risk: for men who run high estradiol on TRT and want to avoid pharmaceutical AIs, Primobolan may offer a softer alternative -- but getting the ratio wrong can drive E2 too low, causing joint pain, low libido, mood disruption, and negative cardiovascular effects.

Can Primobolan Help Preserve or Build Lean Muscle on TRT?​

Metenolone has moderate anabolic effects. Its anabolic rating is approximately 88 relative to testosterone's baseline of 100 -- modestly lower but in the same range. Unlike testosterone, it produces no water retention, which means gains in body composition tend to be dry and lean. Men on TRT who add Primobolan typically report modest improvements in muscle quality and firmness rather than dramatic mass gains.

At low doses (100-200mg/week), the anabolic effect is real but subtle. Some research literature notes that metenolone has been used clinically in cachectic states for muscle preservation, supporting the idea that it adds meaningful anabolic signal above baseline TRT.

Does Primobolan Support Collagen and Joint Health?​

Several members in our forum have noted what they describe as "collagen benefits" from Primobolan -- improved joint lubrication, reduced connective tissue pain, and a general sense of physical resilience. This anecdotal claim has some mechanistic plausibility. Anabolic steroids in general have been shown to stimulate collagen synthesis in connective tissue, though nandrolone has by far the strongest published evidence for this effect.

There are no controlled studies specifically examining metenolone's effects on collagen synthesis or joint health in humans. Any collagen benefit from Primobolan should be considered speculative based on current evidence, distinguishing it from nandrolone's more documented role in joint support.

How Does Adding Primobolan to TRT Affect Your Blood Work?​

This is where precision matters most. A search of peer-reviewed literature through 2025 found no clinical trials specifically examining the effects of adding metenolone enanthate to a stable TRT regimen. The blood work patterns discussed below are built from pharmacological principles and community-documented data.

Why Standard Testosterone Tests Give Misleading Results​

This is the most critical practical issue and cannot be overstated. Standard testosterone immunoassay tests cannot distinguish between testosterone and other structurally similar androgens, including metenolone. If you use a standard lab panel while on Primobolan, the assay will count metenolone molecules as testosterone, artificially inflating your total and free testosterone readings. Men have reported total testosterone values in the supraphysiological range on bloodwork that are entirely explained by this artifact.
The solution is straightforward but requires specifically ordering the right tests:
• Total testosterone: Must use Liquid Chromatography/Mass Spectrometry (LC/MS). This method separates molecules by mass and identifies only testosterone.
• Free testosterone: Must use Equilibrium Dialysis, not calculated estimates.
DiscountedLabs.com offers the Testosterone, Free (Equilibrium Dialysis) and Total, MS panel specifically designed for this purpose.

What Happens to Estradiol?​

Estradiol (E2) is the marker most likely to shift significantly. Because Primobolan does not aromatize and has mild anti-estrogenic properties, adding it to a stable testosterone dose without adjusting that dose will typically lower your E2. The magnitude depends on the Primobolan dose and your individual aromatization rate.
Community experience suggests the risk of over-suppression is real even at moderate doses. Men who have historically managed high estradiol on TRT may find Primobolan genuinely useful here -- but those with estradiol already in the lower-normal range may find it pushes them into symptomatic low-E2 territory. Frequent monitoring during any dosage adjustment phase is essential.

What Happens to HDL Cholesterol?​

This is a consistent and well-documented effect across AAS classes. Primobolan reduces HDL ("good") cholesterol and may raise LDL. The magnitude is generally considered moderate -- less severe than the HDL suppression seen with 17-alpha-alkylated oral steroids like stanozolol or oxandrolone -- but it is not negligible. Injectable metenolone at low doses causes less HDL disruption than oral metenolone acetate because it bypasses first-pass hepatic metabolism.

Cardiovascular research consistently identifies HDL suppression as a meaningful risk factor associated with AAS use, including increased coronary artery disease risk with long-term or high-dose exposure. Any man adding Primobolan to TRT should include a full lipid panel in their monitoring protocol.

What Happens to Hematocrit and Red Blood Cell Count?​

This is one of Primobolan's more favorable properties relative to testosterone alone or nandrolone. Metenolone has low erythropoietic (red blood cell-stimulating) activity. Men who already manage elevated hematocrit on TRT -- requiring periodic phlebotomy -- may find that substituting some testosterone dose for Primobolan, or simply monitoring carefully, produces less hematocrit elevation than other anabolic additions like nandrolone.
That said, the combination of testosterone plus Primobolan still carries more overall androgenic load than testosterone alone, and hematocrit monitoring remains necessary.

What Happens to SHBG, Prolactin, and Other Markers?​

SHBG: Because metenolone has very low SHBG binding affinity (~16% of testosterone), it does not significantly suppress SHBG levels the way masteron or nandrolone do. Men hoping to use Primobolan specifically to raise free testosterone by lowering SHBG may be disappointed -- that is not a primary mechanism of this compound.

Prolactin: Primobolan does not stimulate prolactin secretion (unlike nandrolone, which can raise prolactin at higher doses). This makes it a better option for men who have had prolactin sensitivity issues with 19-nortestosterone derivatives.

DHT: Adding metenolone does not meaningfully convert to DHT. Men concerned about scalp hair loss (androgenic alopecia) from elevated DHT -- a common TRT concern -- will find less direct DHT-mediated risk from Primobolan than from testosterone itself.

What Are the Real Risks Men on TRT Should Weigh Before Trying Primobolan?​

The ExcelMale community values balanced risk assessment, and Primobolan is not without meaningful concerns. The risks fall into several categories:
• Crashed estradiol: As discussed, the anti-estrogenic effect is real and dose-dependent. Driving E2 too low produces symptoms (joint pain, mood dysregulation, libido loss, poor erections) that can be as disruptive as high E2. Careful titration is necessary.
• Cardiovascular lipid impact: HDL reduction is consistent and should be monitored. For men with pre-existing cardiovascular risk factors (family history of CAD, high LDL, hypertension), the lipid impact of any anabolic addition -- including Primobolan -- deserves serious weight.
• Testosterone suppression: Even low-androgenic anabolic steroids suppress the hypothalamic-pituitary-testicular axis. For men already on TRT who have no endogenous production to protect, this is less relevant -- but it reinforces why Primobolan cannot substitute for testosterone and why stopping it abruptly after long-term use still has considerations.
• No clinical oversight pathway: Because Primobolan has no FDA-approved product and no compounding pharmacy route in the US, any man using it cannot do so under the supervision of a licensed prescriber. This means no physician will monitor labs, no pharmacist will verify purity, and no accountability structure exists for product quality.
• Product purity risk: All Primobolan available in the US comes from underground laboratory sources. Contamination, mislabeling, incorrect dosing, and substitution with cheaper compounds are documented risks in unregulated AAS supply chains.

What Do Men in the ExcelMale Community Report About Their Experience With TRT Plus Primobolan?​

Our forum contains some of the most detailed first-person accounts of this combination available anywhere. Synthesizing the most useful threads:
• Starting ratio: Most experienced users recommend a testosterone-to-Primobolan ratio of 1.5:1 to 1:1 (e.g., 150mg test / 100mg Primo per week or 150mg / 150mg). Higher Primobolan doses relative to testosterone increase the risk of E2 suppression.
• Lab timing: Blood work should be done no sooner than 6-8 weeks after a stable dose is established, due to the long half-life of metenolone enanthate (~10-14 days for the ester).
• Injection frequency: Most report twice-weekly injections (the same schedule as testosterone cypionate/enanthate) produce stable levels without meaningful peaks and troughs.
• Reported outcomes: Positive reports most commonly describe improved body composition (firmer, drier appearance), mood stability, modest strength increases, and -- for men who were previously using pharmaceutical AIs -- the ability to reduce or eliminate AI use. Negative reports center on crashed E2 and the difficulty of fine-tuning the testosterone-to-Primobolan ratio.
• Comparison with nandrolone: Men who have tried both compounds commonly describe Primobolan as better for mood and libido (nandrolone can suppress DHT and libido in some men) but weaker for joint pain relief and anabolic effect at equivalent doses.

How Does Primobolan Compare to Other TRT Add-Ons: Nandrolone, Masteron, and Proviron?​

The "TRT Plus" landscape includes several compounds men commonly discuss. The table below provides a direct comparison of the most relevant properties for a man on TRT considering an add-on compound.

Property	Primobolan (Metenolone)	Nandrolone (Deca/NPP)	Masteron (Drostanolone)	Proviron (Mesterolone)
Aromatization	None	Minor (to estrone)	None	None
Anti-estrogen effect	Mild (AI-like)	Minimal	Moderate	Moderate
HDL impact	Moderate reduction	Moderate-significant reduction	Moderate reduction	Mild reduction
Hematocrit/RBC	Low stimulation	High stimulation	Low stimulation	Negligible
Liver toxicity	Low (injectable)	Low	Low (injectable)	Oral - moderate
SHBG binding affinity	Very low (~16% of T)	High	Very high	High
Lab test interference	Yes - must use LC/MS	Yes - must use LC/MS	Yes - must use LC/MS	Less significant
US availability	Not available (no FDA-approved product)	Compounding pharmacy (Rx)	Compounding pharmacy (Rx)	Not approved in US
Collagen/joint benefit	Reported anecdotally	Well-documented	Limited evidence	Minimal

The most important practical distinction for US-based men: nandrolone and masteron can both be obtained through licensed compounding pharmacies with a physician prescription, while Primobolan cannot. For men seeking a TRT add-on with clinical oversight and pharmacy-grade purity, nandrolone (for joint support and anabolic effect) or masteron (for estrogen management and body composition) are more accessible options within the regulated system.

What Is the Legal and Regulatory Status of Primobolan in the United States?​

This is a point of genuine confusion in online discussions. Metenolone is a Schedule III controlled substance in the United States under the Controlled Substances Act -- the same classification as testosterone. Possession without a valid prescription is a federal offense.

The additional complexity is that there is no currently FDA-approved metenolone product. While metenolone appeared briefly in the US market as Nibal Depot in 1962, it was discontinued. It does not appear in the FDA's Orange Book of approved drug products. Importantly, some forum discussions have incorrectly stated that Primobolan is legally available by prescription in Spain; current regulatory review shows that metenolone is not authorized for medical use in Spain either.

Because there is no FDA-approved reference product, compounding pharmacies operating under 503A or 503B regulations cannot legally compound it using standard clinical frameworks -- unlike nandrolone, oxandrolone, or stanozolol, which do have Orange Book listings that permit prescription and compounding. Any Primobolan obtained in the US is from an unregulated underground source, with all the quality and legal risks that entails.

Frequently Asked Questions​

Will Primobolan show up on standard testosterone bloodwork?​

Yes -- and this is a significant problem. Standard immunoassay tests cannot distinguish metenolone from testosterone molecules. If you use a standard test while on Primobolan, your reported total testosterone will be falsely elevated. Always use an LC/MS testosterone test and equilibrium dialysis free testosterone test to get accurate readings.

Can I use Primobolan to eliminate my aromatase inhibitor?​

Potentially, but it requires careful monitoring. Primobolan has mild anti-estrogenic properties and does not aromatize, so adding it to a stable testosterone dose will typically lower E2. Whether this allows you to reduce or eliminate an AI depends on your individual aromatization rate, your current estradiol level, and the Primobolan dose. Driving E2 too low has its own set of symptoms and health consequences -- do not make this change without frequent blood work.

What is a safe starting dose of Primobolan added to TRT?​

Based on community experience (not clinical guidelines, which don't exist for this combination), men typically start with a testosterone-to-Primobolan ratio of 1.5:1 to 1:1. On a 150mg/week TRT protocol, this translates to roughly 100-150mg/week of metenolone enanthate, split into twice-weekly injections. Begin at the lower end and wait at least 6-8 weeks before evaluating bloodwork and subjective response.

Does Primobolan cause hair loss?​

It can in men genetically predisposed to androgenic alopecia, though its androgenic activity is considerably weaker than testosterone or DHT directly. Metenolone does not convert to DHT itself, so the direct DHT scalp stimulation pathway is reduced compared to testosterone. However, it does bind androgen receptors in hair follicles directly. Men with a family history of male pattern baldness should factor this in.

Is the liver safe with injectable Primobolan?​

Injectable metenolone enanthate is not considered hepatotoxic at clinical doses -- it does not carry the 17-alpha-alkyl modification that makes oral anabolic steroids damaging to the liver. That said, liver function tests (ALT, AST) should still be included in periodic monitoring whenever adding any anabolic compound to a protocol.

Related ExcelMale Forum Discussions​

The following threads contain detailed first-person reports and technical discussion from community members on Primobolan and related TRT add-on compounds:
• Low Dose Primobolan With TRT: Benefits, Risks, Protocols -- The primary community thread on this combination, covering bloodwork effects and lab testing guidance.
• Why Don't Compounding Pharmacies and TRT Clinics Make Primobolan? -- Discussion of the regulatory and supply chain reasons behind Primobolan's absence from US clinical practice.
• Proviron on TRT: Alternatives and Comparisons -- Compares DHT-derivative add-ons including Primobolan, Masteron, and Proviron for estrogen management and well-being.
• Nandrolone (Deca Durabolin): Effect on Lab Tests -- Parallel community data collection on how a related anabolic add-on shifts bloodwork markers; useful comparative reference.
• What Are Typical Nandrolone Plus TRT Protocols? -- Community discussion of TRT Plus nandrolone protocols and monitoring strategies, with direct comparison to other add-ons.
• Low Dose Nandrolone With TRT -- Clinical perspectives and community experience with nandrolone as the more accessible TRT add-on alternative.
• Nandrolone: What to Expect -- Hb/HCT, HDL, Muscle -- Detailed breakdown of hematocrit, HDL, and body composition expectations when adding an anabolic to TRT.
• Why Does Proviron Stop Working After a Week on TRT? -- Community analysis of DHT-derivative adaptation effects and the estrogen management challenges common to this compound class.

Key References​

• Wikipedia / INN. Metenolone enanthate. https://en.wikipedia.org/wiki/Metenolone_enanthate. (Accessed May 2026).
• Wikipedia / INN. Metenolone. https://en.wikipedia.org/wiki/Metenolone. (Accessed May 2026).
• Kicman AT. Pharmacology of anabolic steroids. British Journal of Pharmacology. 2008;154(3):502-521. https://doi.org/10.1038/bjp.2008.165
• Rahnema CD, Lipshultz LI, Crosnoe LE, Kovac JR, Kim ED. Anabolic steroid-induced hypogonadism: diagnosis and treatment. Fertility and Sterility. 2014;101(5):1271-1279. https://doi.org/10.1016/j.fertnstert.2014.02.002
• Vanberg P, Atar D. Androgenic anabolic steroid abuse and the cardiovascular system. Handbook of Experimental Pharmacology. 2010;195:411-457. https://doi.org/10.1007/978-3-540-79088-4_18
• Saartok T, Dahlberg E, Gustafsson JA. Relative binding affinity of anabolic-androgenic steroids: comparison of the binding to the androgen receptors in skeletal muscle and in prostate, as well as to sex hormone-binding globulin. Endocrinology. 1984;114(6):2100-2106. https://doi.org/10.1210/endo-114-6-2100
• Meagher SP, Chandra MS, Irwig M, Rao P. The expert's approach to managing cardiovascular risk among athletes using anabolic-androgenic steroids. American College of Cardiology. April 2024. https://www.acc.org/Latest-in-Cardiology/Articles/2024/04/01/16/10/
• Abdullah R, et al. Severe biventricular cardiomyopathy in both current and former long-term users of anabolic-androgenic steroids. European Journal of Preventive Cardiology. 2024;31:599-608. https://doi.org/10.1093/eurjpc/zwad362
• Lin Y, et al. Long-term testosterone shows cardiovascular safety in men with testosterone deficiency in electronic health records. Journal of the Endocrine Society. 2025. https://doi.org/10.1210/jendso/bvaf074
• Buhl LF, et al. Illicit anabolic steroid use and cardiovascular status in men and women. JAMA Network Open. 2025. https://doi.org/10.1001/jamanetworkopen.2025.26636

Conclusion: What Men on TRT Actually Need to Know About Primobolan​

Primobolan occupies an interesting but complicated niche in the TRT add-on conversation. Its pharmacological profile -- no aromatization, moderate anabolic activity, low hematocrit stimulation, no prolactin issues -- looks attractive on paper. And some men in our community have reported genuinely positive outcomes when they have managed the estradiol balance carefully and monitored their lipid panels diligently.
But the practical landscape is unforgiving. There is no clinical evidence base for this specific combination. There is no legal, pharmacy-grade supply in the United States. Standard lab tests will give you completely misleading results unless you specifically order LC/MS testosterone testing. And the margin between useful estradiol management and crashed E2 is narrow enough that it trips up experienced users.
For men who want the category of benefits Primobolan represents -- an anabolic add-on with reduced estrogenic burden -- the more evidence-supported and clinically accessible route runs through nandrolone (for joint support and anabolic effect) or masteron (for estrogen management and body composition), both of which can be obtained through licensed compounding pharmacies with physician oversight. If you do pursue Primobolan, do it with the right testing, careful dose titration, regular lipid monitoring, and realistic expectations about what the community data -- not clinical trials -- can actually tell you.


Medical Disclaimer
This article is for educational purposes only and does not constitute medical advice. The compounds discussed in this article may be controlled substances subject to federal and state laws. Always consult a qualified, licensed healthcare provider before starting, modifying, or discontinuing any hormone therapy or medical treatment. Never use unregulated pharmaceutical products.


About ExcelMale.com
ExcelMale.com is the most trusted, expert-moderated community for men seeking evidence-based guidance on testosterone replacement therapy, hormone optimization, peptide therapy, and men's total health. Founded by Nelson Vergel -- chemical engineer, 30+ year TRT patient, and leading patient advocate -- the forum has grown to 24,000+ members and 20+ years of archives representing the most comprehensive repository of real-world men's health experience anywhere online.

Nelson is the author of Testosterone: A Man's Guide and Beyond Testosterone, available at Amazon. DiscountedLabs.com, also founded by Nelson, provides affordable access to the laboratory panels men on TRT and hormone optimization protocols need to monitor their health effectively.

 

What country are you in?

Is the Primo oral or Inj? and does it matter?

 

Primo original pharmacy only injectable.
Underground Labs produce in Form of tabletts. But for TRT i would recommend injections. Pills are long term bad for organs

 

Primo original pharmacy only injectable.
Underground Labs produce in Form of tabletts. But for TRT i would recommend injections. Pills are long term bad for organs

would you rate primo, mast. or proviron for addition to Trt of 200mg test c a week. if i had to add just one

 

@Namiko ill add on to that question. Which one would u use if u could only choose one and u wanted to use it for the rest of ur life as part of ur protocol, no cycling or anything

 

All 3 have benefits. All 3 dhts. Priviron is oral so if you can get it i would start with priviron. Masteron ist like proviron but a little better and a good partitioner. It's like the big brother of proviron. And primo it's in the middle of both.

I run primo because I get it easy. And i have a good supply of it. If primo wouldn't be available, i would go with mast.

From a health perspective primo is quite good ( if you don't crash your estrogen) . Mine was crashed for 2 months and i didn't feel it. I felt good with a E2 of 7

 

All 3 have benefits. All 3 dhts. Priviron is oral so if you can get it i would start with priviron. Masteron ist like proviron but a little better and a good partitioner. It's like the big brother of priviron. And primo it's in the middle of both.

I run primo because I get it easy. And i have a good supply of it. If primo wouldn't be available, i would go with mast.

From a health perspective primo is quite good ( if you don't crash your estrogen) . Mine was crashed for 2 months and i didn't feel it. I felt good with a E2 of 7

What was ur full protocol with dosages when ur E2 came back at 7?

 

That was 125 test 100 primo. Almost a 1:1 ratio. But everybody is different. Yours might be in range...

 

That was 125 test 100 primo. Almost a 1:1 ratio. But everybody is different. Yours might be in range...

Would u say ur a low, medium, high aromatizer normally?

Ya everyone’s different. But thanks for the anecdote, definitely still very helpful

 

I am a high aromatizer. Even on 100 mg test i need 0,25 arimidex or 12,5 Aromasin just to get my E2 under 20. My body hates estrogen more than 25-30

 

I am a high aromatizer. Even on 100 mg test i need 0,25 arimidex or 12,5 Aromasin just to get my E2 under 20. My body hates estrogen more than 25-30

Wow, interesting. I’ve definitely seen primo be a pretty damn strong ai in a lot of guys. So not super surprised about ur experience. But most guys seem to be able to run a 1:1 ratio without crashing their E2

 

Yes sure. 1:1 works for many guys.

 

All 3 have benefits. All 3 dhts. Priviron is oral so if you can get it i would start with priviron. Masteron ist like proviron but a little better and a good partitioner. It's like the big brother of proviron. And primo it's in the middle of both.

I run primo because I get it easy. And i have a good supply of it. If primo wouldn't be available, i would go with mast.

From a health perspective primo is quite good ( if you don't crash your estrogen) . Mine was crashed for 2 months and i didn't feel it. I felt good with a E2 of 7

what dose of primo to test where you using when you crashed your e2?

 

125 test 100 primo. But that's just me i am better with 2:1 ratio or a bit higher.

Ugl primo 1:1 ratio works perfect for me .in my experience 100 mg pharma primo is 200 mg UGL primo. Doesnt mean the ugls underdone. I got them tested. They contained 100 mg primo per ml. It's just pharma primo hits faster or better. Same with pharma test and ugl test...go find out

 

For you guys if you want to experiment with dht. Ask your doctors if androstenedione is available in your country. It's a pure form of dht.
I have heard only good things about it. But never tried it.
And a log would be Hella interesting if any of you get your hands on it

 

The most important thing with primo imo is to give it at least 6 weeks time to know where your estrogen is and then adjust.
It might take a little adjusting here and there but after you found your ratio you are good to go.
Most guys start with 1:1 ratio. Depending on body fat % it might bring your estradiol down. I would do it this way: if your TRT is 200 mg then better start with 150 test and 100 primo. Don't worry because you dropped test because after couple weeks primo will lower your shbg and you have more free test. You might even reduce your test further down. But lowered shbg with primo is not an issue because it controls your estrogen 24/7 so you don't need to worry about high circulating estrogen.

With mast my ratio is 1:1. If i feel low E2 symptoms i just reduce mast 50%.

Proviron taken with TRT is mostly 50 mg Ed. If E2 drops too low reduce to 25 mg.

Eq reduces E2 as well. But finding ratio is a bit harder. And the only benefit besides the anabolic nature is reducing estrogen. So i wouldn't recommend that. But for many guys it works as well.

I had a talk with my doctor who i get the prescription for my primo from. And he told me that why guys want to run test high and the higher the more they feel better is mostly because the high DHT that comes with high test. That's why they feel better and are hornier.

So it makes sense to reduce test and add dhts.

I know this is an old thread, but I felt I had to comment after reading your info from DR.
I have had a way different experience on TRT with the cream on my balls compared to injections.
With injections libido went away after 4-5 weeks, cream it is strong EVERY day. I think the Extra DHT is converts is the reason why. Also my balls didnt shrink as bad and have as much output or maybe more than without TRT.
Cram is too pricey, so I am thinking prop or enanthate with Primo to try to get similar results

 

For you guys if you want to experiment with dht. Ask your doctors if androstenedione is available in your country. It's a pure form of dht.
I have heard only good things about it. But never tried it.
And a log would be Hella interesting if any of you get your hands on itAb

About 25 yrs ago in the US Andro was sold as a Pro-Hormone ober the counter.
My frien was in love with that stuff.
I tried one pill once and felt like I was invincible!
Can Androstenedione (A DHT) alone give that energy and strength? It was different than I feel with testosterone for sure.

Actually thats not a fair question as I was natural when I took the Andro pill, so I had level of 450-500 totat T at the time I took the Andro pill.

 

About 25 yrs ago in the US Andro was sold as a Pro-Hormone ober the counter.
My frien was in love with that stuff.
I tried one pill once and felt like I was invincible!
Can Androstenedione (A DHT) alone give that energy and strength? It was different than I feel with testosterone for sure

100% and I used to get that shipped to my country in Eastern Europe. I was still in my late teens back then but remember it. Absolutely incredible stuff and felt like GOD mode turned-on lol. Training and gains were absolutely loyal. But that was the last time I had them and only once as I believe they were discountinued and we couldn't get more or we just slacked and let it slip. But man it worked great, cant forget that

 

100% and I used to get that shipped to my country in Eastern Europe. I was still in my late teens back then but remember it. Absolutely incredible stuff and felt like GOD mode turned-on lol. Training and gains were absolutely loyal. But that was the last time I had them and only once as I believe they were discountinued and we couldn't get more or we just slacked and let it slip. But man it worked great, cant forget that

I only ever tried one pill once.
Back then I wasnt thinking about anabolics, but now I would try it if it was available for sure.
I wonder if Anavar feels similar