Ingredient guide
Hydrolyzed Sodium Hyaluronate
hydrolyzed sodium hyaluronate
In short
Hydrolyzed sodium hyaluronate is a smaller-fragment form of hyaluronic acid that can move into the upper layers of the skin’s surface more easily. It helps boost hydration and give a smoother, replenished look.
Reviewed against published evidence · editorially independent · no brand pays to be featured
What it is
Enzymatically or acid-hydrolysed sodium hyaluronate with average molecular weight typically below 50 kDa; smaller fragments diffuse further into the upper stratum corneum; distinct INCI from sodium hyaluronate and sodium acetylated hyaluronate entries.
What the evidence says
ModerateHyaluronic acid (topical)applied to skin
Studied in relation to plumper, better-hydrated-looking skin. It draws and holds water at the surface.
Studied as 0.1% hyaluronic acid.
See the source
76 women, 0.1% HA, twice daily 60 days: significant hydration and elasticity gains vs placebo; low-MW HA reduced wrinkle depth.
hydration, elasticity, wrinkle depth · 0.1% hyaluronic acid
J Drugs Dermatol, 2011
Where it sits
A watery layer. After cleansing, before anything heavier, ideally on slightly damp skin.
- Cleanse
- Tone
- Hydrolyzed Sodium Hyaluronate
- Moisturise
- SPF
Also found as
Related
Where to find it
Options across the range, not a ranking. Run one through Lens and MIRU will tell you if it fits you.
La Roche-Posay Hyalu B5 Serum
Fit comes first: the Lens checks each product against your skin before any retailer link. We may earn a commission, at no cost to you. Picks are editorial, never paid.
Common questions
What does Hydrolyzed Sodium Hyaluronate do for skin?
Its small size allows it to draw in water to the upper layers of the stratum corneum, supporting a plump, hydrated appearance.
Is Hydrolyzed Sodium Hyaluronate good for dry skin?
Yes, it’s widely used for dryness because it helps improve how skin holds moisture. It also works well with other humectants.
How is Hydrolyzed Sodium Hyaluronate used in skincare?
You’ll find it in many hydrating serums and creams, often combined with different molecular weights of HA for layered hydration.
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Personal guidance, not medical advice.