Humectants

Hyaluronic acid.

A family of water-attracting polysaccharides used to retain water at the skin's surface and improve comfort and the appearance of dehydration lines.

INCI name: Hyaluronic Acid
Function: Humectant and skin-conditioning ingredient.
Information level: Good cosmetic evidence
Last reviewed: 22 September 2026

What it does

The different forms are not identical: sodium salts, hydrolysed forms and cross-linked polymers may behave differently in formulations and feel different on the skin.

Who may benefit

Generally suitable for all skin types, particularly in formulas that also include emollients or occlusives to limit water loss.

Compatibility

Compatible with most actives; often combined with glycerin, panthenol, ceramides and squalane.

Precautions

It is not equivalent to an injectable filler and does not permanently alter the structure of the skin.

How to use it

Morning and evening, preferably followed by a cream if your skin tends to become dehydrated.

Concentrations

The percentage cannot be inferred from INCI order. WAI LAB shows it only when stated by a verifiable source.

HOW TO READ IT

What it means in the INCI list?

In the European Union, ingredients above 1% are listed in descending order by weight; below 1%, they may appear in any order. Their position therefore cannot be used to calculate an exact percentage.

Its position helps you understand the formula, but does not on its own establish effectiveness or an exact percentage.

SOURCES

Where the information comes from.

WAI LAB distinguishes cosmetic function, regulatory context and scientific literature. This information is not a substitute for medical advice.

FROM UNDERSTANDING TO CHOOSING

Products with Hyaluronic acid.

799 catalogue products list a recognised form of this ingredient in their INCI.

799 resultsVerified profiles with declared concentrations appear first.