Alpha-Arbutin

Also known as: α-Arbutin, 4-Hydroxyphenyl-alpha-D-glucopyranoside

Generally SafeactiveEWG: 1-3

A highly effective and safe tyrosinase inhibitor for fading dark spots and uneven skin tone.

How it works

Alpha-arbutin is a glycoside of hydroquinone that inhibits tyrosinase — the enzyme responsible for melanin synthesis. Unlike hydroquinone, it does not damage melanocytes but competitively and reversibly inhibits the enzyme. The alpha configuration (vs. beta-arbutin found in plants) provides significantly greater efficacy at lower concentrations.

Concentration note

Effective at 1–2%. Requires consistent daily use for 8–12 weeks to see results.

Best for

HyperpigmentationDark spotsUneven skin tonePost-inflammatory hyperpigmentation

Avoid if

Pregnancy (theoretical conversion to hydroquinone — consult doctor)

Commonly found in

Brightening serumsDark spot treatmentsToners

✅ Pairs well with

Niacinamide L-Ascorbic Acid Tranexamic Acid Hyaluronic Acid

Safety & restrictions

Low safety concern. Theoretical conversion to hydroquinone is minimal at cosmetic concentrations. Conservative caution in pregnancy.

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For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.