- Brightens the Skin*
- May Help Improve the Appearance of Sunspots*
- May Help to Improve Uneven Pigmentation*
Alpha arbutin may inhibit tyrosinase, the enzyme essential to melanin production in the skin (Journal of Cosmetic Science). Alpha arbutin is more potent than beta arbutin in lightening the skin; however, both 1% alpha arbutin and 1% beta arbutin are considered to be more potent than 4% kojic acid in lightening the skin in peer-reviewed research studies.