Can you use alpha arbutin with vitamin C?
Yes. Layering alpha arbutin with vitamin C is fine; the claim that vitamin C's acidity quickly breaks alpha arbutin down on your skin isn't supported.
Why
Alpha arbutin's stability does depend on pH, which matters to formulators keeping it in one bottle for months. Stability data reviewed by the EU's Scientific Committee on Consumer Safety put its half-life at pH 3.5 and 40 °C (104 °F) at more than two years, with marked breakdown seen only under much harsher acid. The few hours it spends on skin next to a vitamin C serum aren't a meaningful concern.
How to use them
Use them in the same routine, thinnest texture first, or use vitamin C in the morning and alpha arbutin at night. Stick to ready-made products rather than mixing the two into one bottle yourself.
Sources
- 1Safety of alpha-arbutin and beta-arbutin in cosmetic products (SCCS/1642/22, final opinion) · European Commission, Scientific Committee on Consumer Safety, 2023
- 2Comparative studies on the chemical and enzymatic stability of alpha- and beta-arbutin · International Journal of Cosmetic Science, 2016
General cosmetic information, not medical advice. Written with AI assistance from the sources above; updated October 2026.