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Ingredient guide
laminaria digitata peptide
In short
Oarweed kelp peptide is a peptide fraction from Laminaria digitata that supports hydration and barrier comfort. It contains bioactive peptides that help skin stay moisturised and resilient.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Hydration · Barrier
Best used
Anytime
What it is
Peptide fraction from Laminaria digitata (oarweed kelp); INCI peptide form distinct from laminaria extract entries; rich in laminine and alginic-acid-adjacent bioactive peptides that support skin water-binding and barrier glycoprotein synthesis; sustainably harvested from North Atlantic wild stocks; applied in intensive hydration and barrier repair serums.
Also found as
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Common questions
It boosts moisture retention and helps support the skin’s barrier proteins for a smoother, more comfortable feel.
Yes, its water‑binding and barrier‑supporting properties make it well suited to dryness or tightness.
It is common in hydrating serums and barrier creams, often in marine‑focused formulas.
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Personal guidance only · For clinical concerns, see a dermatologist.