Compound atlas
Performance

Andarine

Also known as · S4

SARM
Half-life
4h
approx. mean t½
Dose range
25–50 mg
typical, not prescriptive
Category
Performance
primary use-case
Single-dose decay
t½ = 4h · first-order model
~16h
to clear
1× t½
50%
remaining
2× t½
25%
remaining
~4× t½
6%
remaining
0%25%50%75%100%0m4h8h12h16h20h

How a single dose clears, assuming first-order elimination. The half-life is the biggest driver of how often you dose — start a cycle to see your own cumulative concentration curve.

Overview

An early SARM studied for lean mass and fat loss; known for a reversible yellow-tinted-vision side effect. Not approved; banned in sport.

Mechanism of action

Selective androgen-receptor modulation; shorter half-life requires split dosing.

Typical protocol

25–50 mg/day split; vision changes are dose-related and reversible.

Storage

Room temp, dry, away from light.

Disclaimer

This page summarizes publicly available information. None of it constitutes medical advice, prescription, or recommendation to acquire, possess, or use any compound. Many peptides described are research chemicals not approved for human use in the EU. Consult a licensed physician.