Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- beauty
Keratin amino acids
Concern score
Not assessed — no hazard data yet.
Keratin amino acids in plain language
Used in cosmetics as a skin-conditioning agent and a hair conditioner. Keratin Amino Acids is the mixture of amino acids resulting from the complete hydrolysis of Keratin.
- Skin conditioning
- Hair conditioning
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
What we know about this ingredient
Canonical ingredient record built from 1 public-source records.
Regulation
No restrictions found. Keratin amino acids appears in these published regulatory listings.
EUCosIngActiveKeratin Amino Acids is the mixture of amino acids resulting from the complete hydrolysis of Keratin.
- Keratin Amino Acids is the mixture of amino acids resulting from the complete hydrolysis of Keratin.Source →
Expert safety opinions
No expert opinion on file for Keratin amino acids. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for Keratin amino acids yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Found in these products
Cosmetic and personal-care products that list Keratin amino acids are shown first. Their ingredient lists include Keratin amino acids; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
- Curl Talk Defining Curl CreamNot Your Mother’s
- Hask Keratin ProteinDietary Supplements
- Argan Oil Repairing Hair OilHASK · Hair Oil
- Healthy Hand & Nail LotionLife Brand · Body
- Scalp RefreshCreme of nature · Hair
- Frizz control sculpting gelNot your mother's
- defining curl talk cream
- Shampooing Brillance KératineEvoluderm · Hair
- primer amino keratina loquayCosmetic Products
- St. Ives 24 Hour Moisture with Hydratein
- lanza
