Cosmetic ingredient dictionary
Silk Amino Acids in cosmetics: what it is and what it does
Silk Amino Acids is a cosmetic ingredient that holds water in the skin or the product. It is not vegan: it comes from silkworms. Open Beauty Facts finds it in 37 products, most often hair care.
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What does Silk Amino Acids do in a product?
In a cosmetic product, Silk Amino Acids 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 and hair conditioning.
What other names and numbers does Silk Amino Acids have?
- CAS number
- 96690-41-4
- EC number
- 306-235-8
- CosIng reference
- 37698
Is Silk Amino Acids vegan?
No. Silk Amino Acids comes from silkworms. It is not vegetarian either.
Which products contain Silk Amino Acids?
Open Beauty Facts finds Silk Amino Acids in the ingredient lists of 37 of the 22,021 products it has a list for, most often hair care, hair dyes and shampoos.
Products with it, by country of sale: France 9 · United States 6 · Spain 5 · Turkey 4.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Silk Amino Acids 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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