High Purity Prohormone Powder CAS 5197-58-0 Methylstenbolone Stenbolone White Color
High Purity Prohormone Powder CAS 5197-58-0 Methylstenbolone Stenbolone White Color
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Basic Infomation
Place of Origin: China
Brand Name: Yuan Cheng
Certification: ISO9001
Model Number: 5197-58-0
High Light:

anabolic steroid nandrolone


raw supplement powders

Payment & Shipping Terms
Packaging Details: Discreet package
Delivery Time: 4-7 work days
Payment Terms: Bank transfer,,MoneyGram,Bitcoin
Supply Ability: 5000kg/m
Chemical Name: Methylstenbolone,Stenbolone
Appearance: White Crystalline Powder
Email: Kevin@chembj.com
Purity: 99%
Whatsapp: +86 15372415908
Grade: Pharmaceutical Grade
CAS: 5197-58-0
MF: C20H30O2
MW: 302.455
Product Description

High Purity Prohormone Powder CAS 5197-58-0 Methylstenbolone,Stenbolone for Bodybuilding



Product Name Methylstenbolone,Stenbolone
Alias Ultradrol, Methyl Sten,M-sten,Msten,Estembolona,Stenbolonum
Chemical Name 2,17a-Dimethyl-17b-hydroxy-5a-androst-1-en-3-one
CAS No. 5197-58-0
Molecular Formula C20H30O2
Molecular Weight 302.455
Purity 99%
Grade Pharmaceutical Grade
Appearance White Crystalline Powder


Stenbolone is an anabolic steroid. It is structurally similar to 1-testosterone.


The Stenbolon steroid is recommended mostly to professional bodybuilders because it increases the regeneration level in diet time.


The Stenbolon steroid has an efficient action over those symptoms and helps the recovery of the athlete, because by its action it doesn’t retain water and doesn’t increase the level of estrogens. The Stenbolon has an anabolic and androgenic effect considerably weak when it is compared with the oral version of this product, the injectable version leading to a lent but quality increase of muscle weight and stenght. This is the reason why it is administrated by women, beginners in steroids treatments and older sportsmen, who obtained great result without the risk of adverse reactions.


The Stenbolon was first of all a steroid for competitions period.




Methylstenbolone is a very new and potent designer steroid recently brought to the market by Antaeus labs. Several products in the past have claimed to use this compound, however independent lab testing has revealed they only contained superdrol.


Methylstenbolone does not convert to an estrogenic metabolite or have any affinity for the progesterone receptor, so estrogen mediated side effects should be virtually non-existent. Methylstenbolone is also one of the most toxic substances available due to its ability to resist metabolization, although anecdotal reports lead us to believe it carries less side effects than superdrol.

Additional Liver Protection


While many cycle support products contain ingredients that are great anti-oxidants in liver tissue, they do not appear to impact bile acid secretion/metabolism at their given doses. The ingredients TUDCA and UDCA should be utilized on any oral steroid cycle (especially Methylstenbolone and Superdrol) as they have profound abilities at preventing and even reversing anabolic steroid induced liver damage, something milk thistle wont do.


Bodybuilding Benefits


Methylstenbolone is a DHT derived prohormone that provides lean mass gains with low water retention. It provides increases in mass, size, and strength. Unlike superdrol, Methylstenbolone retains little to no water retention meaning you can bulk up without losing definition. This will provide the look of much fuller muscles. Many people after experiencing methylstenbolone prefer it over superdrol.


As stated earlier, Methylstenbolone is derived from DHT, for users this means that aromatization is virtually impossible,so it does not convert to an estrogenic metabolite or have any affinity for the progesterone receptor, so estrogen mediated side effects should be virtually non-existent.This is big news in the bulking and mass building prohormone world.


Methylstenbolone Side Effects


As a methylated compound, and displaying a very high resistance to being metabolized, Methylstenbolone is liver toxic.


Side effects of cycling Methylstenbolone are not that common if users cycle with proper cycle support and follow up with Post Cycle therapy. The most common side effects are feeling lethargic, increased aggression, joint pain, decreased libido and experiencing back pumps. Back pumps can easily be avoided or treated by using the amino acid Taurine. Joint pain can be avoided and treated by taking proper Joint Care. The least common side effect would be estrogen related side effects such as gyno.


These side effects are as follows


•Decreased Libido/Sexual Function
•Lethargy / Fatigue and tiredness
•Increased hair growth / Increased hair shedding
•Puffy / Sensitive Nipples
•Joint Discomfort
•Back Pumps (Dull pain in back after/during workouts) (Resolved through drinking more water, loading up on glucosamine, joint repair, and L-Taurine.)
•Increased aggression, head aches, flushing and various other sides can happen as well.


Methylstenbolone Dosage & Cycle


Methylstenbolone is usually ran anywhere from 3-4 weeks (21-30) days, and dosed around 4-16mg per day with proper liver care.

We recommend that you take 2 caps spread throughout the day, once upon rising and once before sleeping to ensure best results.Due to the extreme potency and toxicity of using methylstenbolone, we strongly advise all our customers not to use the compound methylstenbolone for no longer than 4 weeks.


High Purity Prohormone Powder CAS 5197-58-0 Methylstenbolone Stenbolone White Color 0


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