2,17a-methyl-5a-androsta-1-en-17b-ol-3-one also known as methylstenbolone is a chemical compound that helps to increase muscle mass and strength when entering the human blood stream. 2,17a-methyl-5a-androsta-1-en-17b-ol-3-one (Methylstenbolone) is a oral designer steroid used by bodybuilders and power lifters to increase strength and size. This compound is extremely toxic on the liver and shouldn't be used for any longer than a 4 week cycle. This is a orally-bioavailable compound engineered to resist metabolic breakdown on the A and D rings, precisely where other active hormonal molecules typically breakdown into estrogen.

Side Effects:

•Decreased Libido


•Increased hair growth

•Sensitive Nipples

•Joint Discomfort

•Back Pumps (Dull pain in back after/during workouts) (

•Increased aggression


In 1966, researchers at Searle Laboratories set about testing the anabolic and androgenic effects of a series of A-ring modified androstane derivatives. Compounds explored include
M1T, desoxymethyltestosterone, 17a-methyl-1-androstenediol, and a variety of other compounds were explored for activity.

The researchers announced that even the least active compound in Table 6 possessed a higher relative anabolic potency than previously has been obtained with several clinically interesting compounds which have been studied under identical conditions, i.e. oxymetholone, oxandrolone, stanozolol, and methandrostenolone. Which means its stronger than some of the steroids that are on the market today.

2,17a-methyl-5a-androsta-1-en-17b-ol-3-one should be used with extreme caution and should be used with the proper support supplements such as a good cycle support and proper pct (post cycle therapy) once the cycle is complete.

Here are some prohormones that contain methylstenbolone:

Barbarian FX Mass By Xcel Sports Nutrition


Full Xcel Rage By Xcel Sports Nutrition