Hyaluronic Acid
Pronunciation /hye-uh-loo-RON-ic AS-id/
What it is — A sugar molecule your body already makes — found naturally in your skin and joints.
What it does — Holds up to 1,000 times its weight in water. Plumps and hydrates without leaving an oily film.
What is it?
Hyaluronic acid
What does it do?
Hyaluronic Acid is listed in the EU cosmetic ingredient inventory with the following declared functions:
-
Antistatic
reduces static electricity, mostly in hair products to keep strands smooth and manageable
-
Humectant
draws moisture from the air or deeper skin layers to the surface, helping skin retain water
-
Moisturising
increases the water content of skin or hair, leaving it softer and more pliable
-
Skin conditioning
improves the appearance, feel, and condition of skin
Often found in
- serums
- moisturizers
- sheet masks
- eye creams
Good to know
Apply to damp skin, then seal with a moisturizer. On dry skin in dry climates it can pull moisture *out* — don't skip the seal.
EU regulatory status
Hyaluronic Acid is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is Hyaluronic Acid?
Hyaluronic Acid is a cosmetic ingredient catalogued in the EU CosIng database. Hyaluronic acid
Is Hyaluronic Acid allowed in cosmetics in the EU?
Yes. Hyaluronic Acid is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Hyaluronic Acid do in cosmetic products?
Hyaluronic Acid is declared in the EU cosmetic ingredient inventory with these functions: antistatic, humectant, moisturising, skin conditioning.
What is the CAS number of Hyaluronic Acid?
The CAS (Chemical Abstracts Service) number for Hyaluronic Acid is 9004-61-9.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010