Ingredient glossary
Ergothioneine
INCI: Ergothioneine · Also: L-Ergothioneine
Decent support
Does Ergothioneine clash with what you already use? Check it →A reasonable supporting ingredient. It helps a formula without being the star.
What it does
- antioxidant
- photoprotection
- repair
emerging evidenceCell and clinical poster data show topical ergothioneine reduces MMP-1 secretion and hydroxyl radicals more effectively than idebenone in photoaged skin but large independent trials are still lacking.
On a label: usually effective at 0.1-1%.
Who it's for, and who should skip it
Tends to suit
- photoaged
- normal
- dry
- combo
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
Plays well with
This, for every label you own
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Educational information about a cosmetic ingredient, not medical advice.