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
🧪 Peptide Research Tools: Use QSC’s free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA 5–7 days
🌏 International shipping: 7–14 days
