5 Star Verified Reviews


Product categories

Primobol 100

 100 mg/ml (10 ml)
Primobol 100 (methenolone enanthate) 100 mg/ml (10 ml) by British Dragon (Thailand)






ALTERNATIVE STEROID NAMES: Primobolan, Primobol, Primobolan Depot, Primobol 100, Primobolic
ACTIVE SUBSTANCE: Methenolone Enanthate
Strength Gains:
Mass & Weight Gains:
Fat Burning:
Side Effects:
Ability to keep Gains:
Usual dosages: 200 – 400 mg per week
Detection time: 4 – 5 weeks
Best combined with:
Bulking: Dianabol, Anadrol, testosterones
Cutting: Halotestin, Trenbolone, Winstrol Depot, Oxandrolone.
Beginner Use:
Female Use:
Pros: Low side effects, very “quality” gains, suitable for women.
Cons: Expensive, counterfeited.


Pharmaceutical Name: methenolone enanthate

Chemical Structure: 17ß-hydroxy-1-methyl-5a-androst-1-en-3-one heptanoate

Effective Dose: minimum 400 mg/week


(Methenolone-Enanthate/ Methenolone-Acetate)

Available in both oral and injectable form, Primobolan through the history of anabolic steroids has been one of the more popular, especially in the 1970’s and 80’s but its popularity has definitely waned in recent years. Even so, Primo, as it is most commonly called remains as one of those sort of “Mystical” steroids simply for the stigma that surrounds it as one of Arnold Schwarzenegger’s favorites and due to this label it remains possessing a diehard cult like following. Was it Arnold’s absolute favorite? Only he can answer that and while he’s mentioned several steroids nonchalantly over the years for whatever reason this has been the one most have grabbed hold of. Regardless of Arnold’s love or hate of the steroid it remains true; Primobolan is one of the safest and most highly well-tolerated anabolic steroids of all time and this includes in both men and women. Many over the years like to compare Primo to another fairly well-tolerated steroid Masteron but as we will see this isn’t really a completely fair and accurate comparison. However, like Masteron and many other anabolic steroids Primobolan is commonly counterfeited but in this case Primo is one of the most commonly counterfeited steroids of all time. It should come as no surprise; while not as popular as it once was it still has a decent demand and many first time users with visions of Arnold in their head will buy the first batch they see. However, for those who do desire and find legitimate Primobolan will in-fact have found a very mild and safe anabolic hormone that is especially well-suited for cutting cycles and very easy to control. Understand when you do find it you can expect to pay a pretty penny, for this is one of the more expensive anabolic steroids on the market.


A Dihydrotestosterone (DHT) derivative, Primobolan is the common trade name largely associated with the Methenolone steroid and comes in both an oral and injectable form. Carrying with it both anabolic and androgenic traits injectable Primobolan comes in the form of Methenolone-Enanthate, while the oral tablet as Methenolone-Acetate; in either case you are receiving the same hormone and while this isn’t the only steroid available in both forms in this case one is far superior to the other. As both anabolic and androgenic the androgenic nature of the hormone is rather low as it is far more anabolic; further, as is by its nature Primo in any form will not aromatize and this can often be a most welcomed trait. Milligram for milligram injectable Primobolan is far more powerful than the oral Methenolone version and the reason is very simple; unlike most oral anabolic steroids oral Primobolan is not 17-alpha-alkylated (17-aa). As you recall the 17-aa structural change allows oral steroids to survive ingestion;oral steroids that do not possess this trait are often destroyed by the body before they can be used or at least a large portion of the ingested hormone is. Oral Primo will still work but a large portion of each milligram will not survive the first pass through the liver. At the same time the oral version is not without a benefit; most oral anabolic steroids carry with them a high toxicity rating due to the 17-aa structural change and as Primobolan is absent this change its toxicity is very low; in-fact, oral Primo really isn’t liver toxic at all. When we look at injectable Methenolone we do not have to worry about toxicity either but we also find the hormonal compound to be far more valuable; so much so that we would always recommend injectable Primobolan over the oral version.

The Benefits of Primobolan:

There are some very powerful DHT steroids on the market, Anadrol, Winstrol and Halotestin being the most powerful of all but as these are very powerful steroids, Anadrol being the most powerful of all, in comparison Primobolan, although a DHT in nature too is far milder. Unlike Anadrol Primobolan is not a good bulking steroid and to gain any real benefit during a bulking cycle from Primo use you would necessarily need to supplement with massive amounts. If there is one benefit Primobolan has that is truly beneficial it is in its ability to preserve muscle tissue while dieting and this is a very welcomed trait as muscle tissue is very easy to lose when calories are restricted. Further, Primo does fantastic work on our overall metabolic function and while many anabolic steroids do the same Primobolan is one of the few that directly promotes fat-loss. In the end, when used while leaning out Primo will lend to a physique that is leaner and harder and one that carries more lean tissue than it would have had Primo been missing. As eluded to above Primobolan is also a fantastic steroid for women; in-fact it is one of the few that is very well-tolerated by most women who supplement, second only to Anavar but it is a very close second. Many women have to be very careful when they supplement with anabolic steroids as they are primarily testosterone based and such increases in hormones can bring havoc to a woman’s femininity in the form of virilization. Virilization effects can be pretty harsh, as stated they can dramatically effect a woman based on her very femininity and can cause such effects as deepening of the vocal chords, body hair growth, clitoral enlargement, and even hair-loss in the frontal area of the scalp just to name a few. However, when we look at Primobolan we find the issue of virilization to be very low; in-fact it is extremely low but it can still occur to a degree; individual sensitivity will play a big part. Most women will find they can supplement with Primo for at least 4 weeks and often up to 6 without any negative effects and receive a decent anabolic bump; however, if adverse effects start to show and a woman discontinues use immediately they will reverse and be of no concern any longer. In the same light yet in the opposite direction, women who continue use in-spite of adverse effects will see these effects take hold in a more permanent way.

The Side-Effects of Primobolan:

While all anabolic steroids have a potential for negative or adverse side-effects the extent of this probability varies with each one and in the case of Primo the probability is about as low as it can get, especially when used responsibly. As you already understand Primobolan does not possess an aromatizing effect, therefore some of the more common associated anabolic steroid side-effects such as Gynecomastia and water retention are of no concern; further, we cannot ignore that it is also very liver friendly indeed. Of the possible side-effects they will be very similar to other popular DHT based steroids; the side-effects of Winstrol are applicable here but to a far less degree. Issues of hair-loss and prostate enlargement can be of a slight concern; however, very few men will ever experience any negative effect on the prostate and those that lose any hair were going to lose it any way; DHT based steroids simply speed up what is already coming.

Primobolan & Suppression:

In the world of anabolic androgenic steroids there are often more myths than truths and it can be hard to decipher which is which, especially when you’re first starting out. Unfortunately many of these myths survive into the veteran ranks, for if you learned a lie early on you’ll more than likely still believe it later on. Of all the myths and lies there is one that surrounds Primo with more gusto than most and it revolves around testosterone suppression. It is understood by most, the use of anabolic steroids suppresses natural testosterone production, and even the use of exogenous testosterone suppresses natural testosterone production. The degree of suppression varies with each steroid but the prevailing myth held by many is that Primobolan doesn’t suppress and on this belief many like to use it as a bridging agent between cycles. Let’s put this lie to rest once and for all; absolutely, Primobolan suppresses natural testosterone, in-fact a very low dose of Primo can suppress natural production by as much as 50% and we’re talking about one dose and not taking into account multiple doses spread out over a course of weeks. How suppressive is it, how much Primo does it take to suppress 50% of your natural testosterone production? Assuming your Primo is real, remember, there is a lot of counterfeit product, a mere 25mg will cause a 50% suppression rate making the idea of bridging with Primobolan rather stupid.

Primobolan Cycles & Doses:

As a mild steroid, while most men who supplement will use it while dieting they will still need to take a fairly large amount to gain any positive effect. If you supplement with oral Primo you will need even more per week than if you choose injectable and as both are very expensive; as you can guess this cost will add up very fast. Most men who try Primobolan and who are disappointed on the basis of no results are usually found lacking simply because they didn’t take enough; for example, an average man will need approximately 500mg per week of injectable Primo to receive a benefit and he will need to do so for at least 8 weeks. Yes, you can absolutely take more and for a longer period of time but if you do be prepared to feel your wallet get a whole lot lighter. You may have already guessed, while Primobolan can be used by men if we were to recommend it to anyone it would be the female performance enhancer first; not only because it will be tolerated so well by her but because she will not need nearly as much making it all the more affordable and feasible. Again, injectable Primo will prove to be best but to ensure safety and protection against virilization is in place most women will not want to exceed 6 weeks of use max with 4 weeks of usegenerally being the minimal time frame. For women who want more they can absolutely run another course but it is advised that 4 weeks of discontinued use be held to before another course begins. For the average woman most will find 100mg per week to be sufficient; you can go higher but the higher you go the greater the risk. You may need to play with the dosing a little bit but 100mg is a good place to start and 2 injections per week of 50mg each is just about perfect.