Alpha Arbutin
A glycosylated derivative of hydroquinone that brightens hyperpigmentation safely, without hydroquinone's regulated safety concerns.
Competitively inhibits tyrosinase, slowing the rate-limiting step of melanin biosynthesis. The alpha-isomer is roughly 10× more potent than beta-arbutin.
- Fades dark spots
- Evens skin tone
- Reduces melasma appearance
- Safer than hydroquinone
- Stable in formula
What the evidence supports.
- All skin types
No notable contraindications reported.
Mid-routine serum or treatment step.
Concentration range in well-formulated products: 1%–2%
Year-round; always pair with SPF.
Natural compound found in bearberry leaves.
No specific deficiency signals tracked for this ingredient.
Layer with TXA + niacinamide for a triple-action melasma stack. Slow but steady results, expect 12 weeks.
- Hamed et al. 2001, 2% alpha-arbutin lightened PIH significantly over 8 weeks
The research behind Alpha Arbutin.
Every claim on this page traces to published research. Findings below are drawn from randomized trials and systematic reviews, each links to the study on PubMed.
International Journal of Dermatology, 2004
British Journal of Dermatology, 2002
International Journal of Dermatology, 1991
No flagged conflicts. Still, patch-test new actives.
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