INCI name

NONAPEPTIDE-1

Nonapeptide-1

A synthetic peptide of nine amino acids used for hair and skin conditioning.

What it is

Nonapeptide-1 is a synthetic peptide of nine amino acids, built from arginine, lysine, methionine, phenylalanine, proline, tryptophan and valine. CosIng lists it as a hair-conditioning and skin-conditioning agent.

Where it is used

Found in serums, creams and other products marketed for uneven skin tone.

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.

Peptides are usually used in very small amounts; the label does not show the concentration, and the INCI name says nothing about any effect beyond the function listed by CosIng.

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.
Skin conditioning
Maintaining the skin in good condition.

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (15)

Check a full ingredient list