---
title: "Mesterolone"
description: "Proviron is a unique oral androgen: low hepatotoxicity (not C-17 alkylated), mild anti-estrogen properties, improves libido and hardness. Very popular in cutting and end-of-cycle. Binds to SHBG, freeing up more free testosterone."
lang: en
dateModified: 2026-05-25
canonical: https://anaprotokol.com/en/molecule/proviron
---

# Mesterolone

Proviron is a unique oral androgen: low hepatotoxicity (not C-17 alkylated), mild anti-estrogen properties, improves libido and hardness. Very popular in cutting and end-of-cycle. Binds to SHBG, freeing up more free testosterone.

**Catégorie** : Stéroïde oral
**Voie d'administration** : Oral
**Demi-vie** : 12 heures
**Détection** : 5–6 semaines
**Ratio anabolique** : 40
**Ratio androgénique** : 150
**Aromatisation** : Non
**Progestine** : Non
**Hépatotoxique** : Non
**PCT requise** : Non

**Autres noms** : Mesterolone

## Effets
- Increased libido
- Hardness
- Mild anti-estrogen properties
- SHBG binding (frees testosterone)

## Effets secondaires
- Hair loss (DHT)
- Acne
- Mild aggression
- Mild HPTA shutdown

## Suppléments de soutien
- Finasteride (if alopecia)
- Omega-3

## Synergies
- Any cycle
- Anavar
- Winstrol
- Cutting in general

## À éviter
- Users prone to alopecia

## Dosage masculin
- Débutant : 25–50 mg/j
- Intermédiaire : 50 mg/j
- Avancé : 100 mg/j

## Dosage féminin
Not recommended (virilization)

**Fréquence** : 1-2× / day