What it means
Ascorbic acid is unstable and needs a low pH to penetrate well, so formulation decides how much of the vitamin reaches the skin. Derivatives are more stable but are studied less.
Vitamin C is most useful alongside sunscreen rather than in place of it.
Also known as
- ascorbic acid
- L-ascorbic acid
- vitamin C serum
- ascorbyl derivatives
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Sources
General information, not medical advice. Talk to a clinician about any decision about your health.