An amide of oleic acid and the amino acid tyrosine, listed as a skin-conditioning and skin-protecting ingredient.
What it is
Oleoyl tyrosine is N-oleoyl-L-tyrosine, a compound in which oleic acid, a monounsaturated C18 fatty acid, is bonded through an amide link to the amino acid L-tyrosine. CosIng lists it as a skin-conditioning and skin-protecting ingredient.
Where it is used
Appears on the ingredient lists of a small number of products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not reveal the source of the oleic acid.
Functions
- Skin conditioning
- Maintaining the skin in good condition.
- Skin protecting
- Helping to avoid harmful effects to the skin from external factors.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

