Ingredient glossary
Alpha Arbutin
INCI: Alpha-Arbutin · Also: 4-Hydroxyphenyl Alpha-D-Glucopyranoside
A genuinely useful ingredient with real evidence behind it, not hype.
What it does
- brightening
- antioxidant
moderate evidenceSplit face randomized trials using four to five percent alpha arbutin in combination formulas show melanin index and MASI score reductions comparable to triple combination cream with lower recurrence and less erythema.
On a label: usually effective at 2-5%.
Who it's for, and who should skip it
Tends to suit
- pigmentation
- melasma
- postinflammatory hyperpigmentation
- normal
- combo
- oily
Approach with care
- very sensitive
- compromised barrier
- pregnancy
- Clogs poresLow
- Irritation riskModerate
- pH-dependentIts effect depends on the product's pH
Pregnancy: Check with your doctor before using during pregnancy or breastfeeding.
Plays well with
This, for every label you own
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Educational information about a cosmetic ingredient, not medical advice.