Cystine
Cystine is a hair conditioning and antistatic ingredient. It’s in 3 products on Poliage, most often moisturizer and serum. Avoid lists on Poliage that include it: none.
Updated October 21, 2026
What it does
Contains Cystine: antistatic
Function listed in CosIng
Contains Cystine: hair-conditioning
Function listed in CosIng
Contains Cystine: masking
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 75424, accessed October 22, 2026.
Products that contain Cystine
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