Proof.Fit

Glycerol

5 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Hydration + barrier

TEWL↓, moisture↑

Dryness relief, +

3,369 people
Hydration
Moderate

Hydration↑, urine↓

Plasma volume↑, endurance↑

766 people
Vitality
Moderate

Ammonia/HE ↓

Performance/rehydration ↑

634 people

Endurance +21–25%, HR↓

Fluid retention/plasma volume↑

Time-to-exhaustion, mass loss↓

178 people

Pain/disability; +9 responders

Mobility; greater pain drop

145 people