Cosmetic ingredient dictionary
Betaine in cosmetics: what it is and what it does
Betaine is a cosmetic ingredient that holds water in the skin or the product. Open Beauty Facts finds it in 437 products, most often hair care.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Betaine do in a product?
In a cosmetic product, Betaine holds water in the skin or the product, keeps the skin in good condition and makes hair easier to comb, softer or shinier. The EU’s CosIng database lists these jobs for it: humectant, skin conditioning, hair conditioning, viscosity controlling and antistatic.
What other names and numbers does Betaine have?
- CAS number
- 107-43-7
- EC number
- 203-490-6
- CosIng reference
- 74520
Which products contain Betaine?
Open Beauty Facts finds Betaine in the ingredient lists of 437 of the 22,021 products it has a list for, most often hair care, shampoos and face care.
Products with it, by country of sale: Germany 98 · France 76 · Australia 38 · United States 32.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Betaine turns up, not how much of the market it is.
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’.
- European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
- 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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