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Cosmetic ingredient dictionary

Ascorbic Acid in cosmetics: what it is and what it does

Ascorbic Acid is a cosmetic ingredient that stops the product reacting with oxygen and going off. Open Beauty Facts finds it in 312 products, most often hair care.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Ascorbic Acid do in a product?

In a cosmetic product, Ascorbic Acid stops the product reacting with oxygen and going off, keeps the skin in good condition, and hides an unwanted smell or taste. The EU’s CosIng database lists these jobs for it: antioxidant, skin conditioning, masking and buffering.

antioxidantskin conditioningmaskingbuffering

What other names and numbers does Ascorbic Acid have?

CAS number
50-81-7, 62624-30-0
EC number
200-066-2, 263-644-3
CosIng reference
74328

Which products contain Ascorbic Acid?

Open Beauty Facts finds Ascorbic Acid in the ingredient lists of 312 of the 22,021 products it has a list for, most often hair care, hair dyes and shampoos.

  • Hair care23
  • Hair dyes17
  • Shampoos11

Products with it, by country of sale: Norway 57 · France 52 · United States 40 · Australia 40.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Ascorbic Acid turns up, not how much of the market it is.

On these listsAntioxidants

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors

Sources

The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL

Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

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