Also known as: 4-Hydroxyphenyl-Alpha-D-Glucopyranoside
Alpha-arbutin is a glycosylated hydroquinone derivative that inhibits tyrosinase activity, reducing melanin production without the cytotoxicity associated with hydroquinone. It is more stable and effective than beta-arbutin. Used for hyperpigmentation, dark spots, and uneven skin tone. Works synergistically with vitamin C and niacinamide.
Comedogenicity ratings are based on the rabbit ear assay model. Individual skin responses vary. See our article on comedogenicity ratings for context.
The Ingredient Journal
Every week we break down one ingredient in depth — the science, the claims, and what the label is not telling you.