Ingredient glossary / Antioxidant
Sodium ascorbyl phosphate
On the label: Sodium Ascorbyl Phosphate · Antioxidant
What it is
A stable, water-soluble salt of vitamin C that skin converts to ascorbic acid; gentler and longer-lasting on the shelf than the pure acid.
Antioxidants: Antioxidants slow oxidation in the formula (keeping oils from going rancid) and, for some, on the skin.
Wikidata: Chemical compound. Q27269401 →
In the research
24 PubMed papers mention it with skin, cosmetics or hair; the three most recent:
- Re-Review Summary of Ascorbic Acid and Ascorbates · International journal of toxicology, 2026
- Clinical Applications of Vitamin C in Dermatology: A Systematic Review · The Journal of clinical and aesthetic dermatology, 2026
- Assessment of the feed additives consisting of ascorbic acid (3a300), sodium ascorbate (1b301), calcium ascorbate (1b302), ascorbyl palmitate (1b304), sodium calcium ascorbyl phosp · EFSA journal. European Food Safety Authority, 2025
A paper is a paper, not a verdict: titles are listed so you can read them, and a study on cells or mice says little about a cream on a face.
Other antioxidants
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