INCI name

HYDROLYZED KERATIN

Hydrolysed keratin

Keratin protein broken down into smaller fragments.

What it is

Hydrolyzed keratin is keratin, the main protein of hair, wool and feathers, broken down into peptides and amino acids. Small fragments can attach to the hair surface and act as a conditioning agent.

Where it is used

Found in shampoos, conditioners, masks and nail 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 source (often wool or feathers) is not shown by the INCI name.

Functions

Antistatic
Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
Film forming
Producing (upon application) a continuous film on the skin, hair or nails.
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.
Humectant
Retaining and/or preserving the moisture in a product during use.
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 (279)

Check a full ingredient list