INCI name

HYDROXYPROLINE

Hydroxyproline

An amino acid found in collagen, used as a hair- and skin-conditioning ingredient.

What it is

Hydroxyproline is L-4-hydroxyproline, a hydroxylated form of the amino acid proline and a characteristic building block of collagen. CosIng lists it as an antistatic, hair-conditioning and skin-conditioning ingredient and a cleansing surfactant.

Where it is used

Found in creams, serums, hair care products and other 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 label does not show the amount used.

Functions

Antistatic
Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
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.
Surfactant – cleansing
Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

EU regulation

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

Products with this ingredient (9)

Check a full ingredient list