Proviron 25mg Tablets | 100-Count | Mesterolone
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QSC Proviron (Mesterolone (DHT oral androgen — non-17α-alkylated)) — ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
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What is Proviron?
Mesterolone (Proviron) is a 1α-methyl DHT oral androgen — NOT 17α-alkylated, therefore significantly lower hepatotoxicity than most oral AAS. Does not aromatise, partial AR agonist, high SHBG binding affinity. Research: male fertility, SHBG biology, anti-oestrogenic mechanisms, and comparative non-alkylated oral AAS liver safety. CAS 1424-00-6.
Research Applications
SHBG Displacement
High SHBG affinity — displaces testosterone and other steroids
Anti-Oestrogenic
Competitive inhibition at aromatase — reduces estrogen synthesis
Male Fertility Research
Spermatogenesis support — Sertoli cell androgen environment
Non-17α-Alkylated Safety
Lower hepatotoxicity — comparative liver safety reference
AR Partial Agonism
Partial agonist at AR — receptor pharmacology studies
Quick Specs
| Form | Tablet — 20mg per tablet, 100-tablet bottle |
| CAS Number | 1424-00-6 |
| Molecular Formula | C₂₀H₃₂O₂ |
| Molecular Weight | 304.5 g/mol |
| Compound Type | Oral Anabolic Steroid |
| Purity | ≥99% by HPLC — every batch |
| Identity | MS molecular weight confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house synthesis — Qingdao, China |
| Storage | Room temperature sealed | cool, dry storage |
| Shelf Life | 24 months unopened |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
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Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.

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