Ingredient glossary / Antioxidant
Tetrahexyldecyl ascorbate
On the label: Tetrahexyldecyl Ascorbate · Antioxidant
What it is
An oil-soluble form of vitamin C, stable and used in oils and creams; often listed as THD ascorbate.
Antioxidants: Antioxidants slow oxidation in the formula (keeping oils from going rancid) and, for some, on the skin.
Wikidata: Chemical compound. Q27272703 →
In the research
14 PubMed papers mention it with skin, cosmetics or hair; the three most recent:
- Clinical Applications of Vitamin C in Dermatology: A Systematic Review · The Journal of clinical and aesthetic dermatology, 2026
- Correction to "Hydroquinone-Free, Tetrahexyldecyl Ascorbate Antioxidant Serum for Hyperpigmented and Photodamaged Skin to Achieve Skin Health" · Journal of cosmetic dermatology, 2026
- Hydroquinone-Free, Tetrahexyldecyl Ascorbate Antioxidant Serum for Hyperpigmented and Photodamaged Skin to Achieve Skin Health · Journal of cosmetic dermatology, 2026
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.
Products whose label lists it
2 on the siteMatched from the ingredient list the supplier printed; the position in the list (first or thirtieth) is on each product page.
Made in the USA
Made in the USAOther antioxidants
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