---
title: "S23"
description: "S23 is one of the most potent SARMs with HPTA suppression close to steroids. Formerly studied as a male contraceptive (at high doses). Full PCT mandatory. Reserved for experienced SARMs users."
lang: en
dateModified: 2026-05-25
canonical: https://anaprotokol.com/en/molecule/s23
---

# S23

S23 is one of the most potent SARMs with HPTA suppression close to steroids. Formerly studied as a male contraceptive (at high doses). Full PCT mandatory. Reserved for experienced SARMs users.

**Catégorie** : SARM
**Voie d'administration** : Oral
**Demi-vie** : 11,9 heures
**Détection** : 6–8 semaines
**Ratio anabolique** : 100
**Ratio androgénique** : 20
**Aromatisation** : Non
**Progestine** : Non
**Hépatotoxique** : Non
**PCT requise** : Oui

**Autres noms** : S-23

## Effets
- One of the most anabolic SARMs
- Significant lean gains
- Hardness
- Cutting

## Effets secondaires
- Very strong HPTA suppression (close to steroids)
- Possible testicular atrophy
- Acne
- Aggression

## Suppléments de soutien
- Omega-3
- Zinc
- Vitamin D3

## Synergies
- MK-677
- Cardarine
- LGD-4033

## À éviter
- SARMs beginners
- Without PCT after cycle
- Underestimating suppression

## Dosage masculin
- Débutant : 5–10 mg/j
- Intermédiaire : 15–20 mg/j
- Avancé : 25–30 mg/j

## Dosage féminin
2.5-5 mg/day

**Fréquence** : 1-2× / day