Can you use vitamin C derivatives like ascorbyl glucoside or sodium ascorbyl phosphate with niacinamide?
Yes. Vitamin C derivatives such as sodium or magnesium ascorbyl phosphate, ascorbyl glucoside, 3-O-ethyl ascorbic acid and tetrahexyldecyl ascorbate pair well with niacinamide.
Why
These derivatives are more stable than pure L-ascorbic acid and don't need a very low pH, so the old vitamin C and niacinamide worry is even less relevant here. A randomized study of a serum combining niacinamide with ascorbyl glucoside (plus other actives) found it well tolerated over five months. Both are used to help even out the look of skin tone, so they complement each other.
How to use them
Use them in the same routine in either order, or pick a product that contains both. They work morning or night; in the morning, finish with broad-spectrum sunscreen.
Sources
- 1Evaluation of the Efficacy of a Serum Containing Niacinamide, Tranexamic Acid, Vitamin C, and Hydroxy Acid Compared to 4% Hydroquinone in the Management of Melasma · Journal of Cosmetic Dermatology, 2025
- 2Topical Vitamin C and the Skin: Mechanisms of Action and Clinical Applications · Journal of Clinical and Aesthetic Dermatology, 2017
- 3Can you use Niacinamide and Vitamin C (Ascorbic Acid) together? · KindofStephen, 2016
General cosmetic information, not medical advice. Written with AI assistance from the sources above; updated October 2026.