Ingredient guide
Proxylane (C-Xyloside)
proxylane
In short
Proxylane is a sugar‑derived molecule that supports the skin’s water‑holding matrix. It helps improve the look of plumpness and elasticity over time.
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What it is
Wood-sugar derivative that stimulates glycosaminoglycan (GAG) synthesis in dermal fibroblasts. Supports the water-holding capacity of the extracellular matrix.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- Proxylane
- Moisturise
- SPF
Also found as
Related
Methylsilanol Mannuronate
Hydration · Firmness
Pelvetia Canaliculata Extract
Hydration · Firmness
Hydroxypropyl tetrahydropyrantriol (Pro-Xylane)
Firmness · Barrier · Hydration
Succinyl Atelocollagen
Hydration · Firmness
Bladderwrack Peptide
Firmness · Hydration
L. Buchneri Ferment Filtrate
Barrier · Hydration
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
SkinCeuticals A.G.E. Interrupter
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 Proxylane do for skin?
It encourages the skin to hold more moisture by supporting components like glycosaminoglycans, which can make skin look smoother and more supple.
Who is Proxylane best for?
It’s suitable for dry or sensitive skin types and for anyone wanting a more hydrated, elastic appearance.
How is Proxylane used in routines?
It’s typically found in serums and moisturisers designed to support long‑term hydration and visible firmness.
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Personal guidance, not medical advice.