What it is
Alpha-arbutin is a glucoside of hydroquinone in which an alpha glycosidic bond links the glucose unit, and it is generally produced by biosynthetic or synthetic methods rather than direct plant extraction. It is used in skincare and sunscreen formulas as a brightening and skin-conditioning agent that works gradually and is valued for its stability and water solubility. It is typically included at low percentages in serums, creams, and daytime products.
Safety & warnings
Alpha-arbutin is generally well tolerated and is considered milder than free hydroquinone. It is not a fragrance allergen and is not an oil, so comedogenicity is not relevant. As with many active ingredients, those with sensitive skin may prefer to introduce it gradually.
Origin & sourcing
Typically produced by biotechnological or synthetic synthesis. It is the alpha-anomer glucoside of hydroquinone; the related beta form, arbutin, occurs naturally in plants such as bearberry.
Questions everyone asks
Is alpha-arbutin the same as arbutin?
They are closely related glucosides of hydroquinone; alpha-arbutin is the alpha-anomer, while plant-derived arbutin is the beta form.
How is it used in skincare?
It is included at low percentages as a brightening and skin-conditioning agent that works gradually over time.