Proviron

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Proviron

Mesterolone tablets studied for supporting free testosterone levels and muscle hardness during cutting phases.

Proviron (Mesterolone) is an orally active DHT derivative studied primarily as a supportive compound rather than a primary mass-building agent, valued in research for its effects on androgen receptor activity and free hormone availability. This formulation supplies 50 tablets of 25mg per tub. Chemically classified as C20H32O2, Mesterolone binds strongly to sex hormone-binding globulin, a property investigated for its potential to increase the circulating fraction of free testosterone in research models. Unlike many oral anabolics, it exhibits minimal hepatotoxicity and does not convert to oestrogen through aromatisation. With a half-life of approximately 12 hours, Proviron supports steady dosing intervals and is frequently included in research protocols examining muscle hardness, definition, and libido during cutting phases.

Independent laboratory documentation

Certificates of Analysis

View the laboratory reports currently published for this product.

Certificate of Analysis

Specifications

Tablets
50
Dose Per Tablet
25mg
Half-Life
12 hours
Administration
Oral
Chemical Structure
C20H32O2

Research Benefits

  • Muscle Hardness and Definition — Studied for contributing to a harder, more defined appearance during cutting research.
  • Free Testosterone Support — Strong SHBG binding is investigated for increasing circulating free testosterone.
  • No Aromatisation — Does not convert to oestrogen, avoiding water retention.
  • Minimal Hepatic Strain — Noted in research for a comparatively low hepatotoxicity profile relative to other oral anabolics.
  • Libido Research — Frequently studied for its androgenic influence on libido and sexual health markers.

How It Works

Mesterolone is a DHT derivative that binds strongly to the androgen receptor while also exhibiting a notable affinity for sex hormone-binding globulin (SHBG). By occupying SHBG, it is studied for its potential to displace and free up testosterone that would otherwise remain bound and biologically inactive.

Because it does not aromatise, Mesterolone produces no oestrogen-related side effects. Its roughly 12-hour half-life supports steady androgen receptor occupancy across a research protocol, and its comparatively low hepatic strain has made it a frequent subject of supportive-compound research.

⚠ For Research Use Only

This product is supplied strictly for in-vitro laboratory and preclinical research use. It is not a drug, food, dietary supplement, or cosmetic, and is not intended for human or animal consumption, diagnosis, treatment, or prevention of any disease. Proviron must be handled only by qualified individuals trained in proper laboratory safety procedures.

By purchasing, the buyer confirms this product is being acquired for legitimate research purposes and assumes full responsibility for its handling, storage, and use in compliance with all applicable local, national, and international laws.

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