Ingredient glossary / Antioxidant
Vitamin C (L-ascorbic acid)
On the label: Ascorbic Acid · Antioxidant
What it is
Pure vitamin C, water-soluble and unstable: it oxidises to a yellow-brown in light and air. Serums usually run 10 to 20 percent at a low pH, in dark bottles.
Antioxidants: Antioxidants slow oxidation in the formula (keeping oils from going rancid) and, for some, on the skin.
Wikidata: Water-soluble vitamin and antioxidant essential for collagen synthesis, immune function, and skin brightening. Q199678 →
In the research
2,708 PubMed papers mention it with skin, cosmetics or hair; the three most recent:
- Supraclavicular thermography does not isolate a brown adipose tissue signal during room temperature β-adrenergic stimulation in adults · Physiological reports, 2026
- Safety and Efficacy of a Lyophilized Compound Sodium Hyaluronate Injection for the Improvement of Skin Texture · Aesthetic plastic surgery, 2026
- Structure-Activity Relationship Studies of l-Ascorbic Acid: Exploring Structural Requirements for the Potentiation of Human α9α10 Receptors · ACS chemical neuroscience, 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
6 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 USA
Made in the USA
Made in the USA
Made in the USA
Made in the USAOther antioxidants
Dew & Balm describes ingredients from the public record and makes no claim about what a product will do for you. Statements about dietary supplements have not been evaluated by the FDA. If a product causes a reaction, stop using it; a reaction that spreads or affects breathing is a call to a doctor or 911.