A sultaine carrying a methoxycinnamic group, listed as a hair-conditioning ingredient and UV absorber.
What it is
Methoxycinnamidopropyl hydroxysultaine is a sultaine, a zwitterionic compound with a positively charged quaternary ammonium group and a negatively charged sulfonate group in the same molecule, linked through an amide bond to a 4-methoxycinnamic acid residue. CosIng lists it as a hair-conditioning ingredient and a UV absorber, a function that refers to protecting the product itself from UV light.
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 UV-absorber function in CosIng concerns protection of the product; it is not the same as a UV filter intended to protect the skin or hair.
Functions
- Hair conditioning
- Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
- UV absorber
- Protecting the cosmetic product from the effects of UV-light.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.