Histidine Hcl
Histidine Hcl is a skin conditioning and hair conditioning ingredient. It’s in 2 products on Poliage, most often serum. Avoid lists on Poliage that include it: none.
Updated October 21, 2026
What it does
Contains Histidine Hcl: hair-conditioning
Function listed in CosIng
Contains Histidine Hcl: skin-conditioning
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 84658, accessed October 22, 2026.
Products that contain Histidine Hcl
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