Glutathione
Tripeptide antioxidant
CLimited evidence (small studies)Safety: Safe
Chemical Function
Master intracellular antioxidant and brightener.
Scientific Evidence
Topical effects are limited by poor penetration; oral studies mixed.
Quality of EvidenceWeak
Interactions
Pairs with vitamin C for brightening; stability is a challenge.
Pro-Aging Relevance
Brightening and antioxidant support, limited by penetration.
The Science Behind Glutathione
Glutathione is the body's master antioxidant. Topically, poor penetration limits results, so it is a supporting brightener rather than a headline active.
Recommended Products
No products in our database contain this ingredient yet.