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Ingredient guide
arthrospira platensis peptide
In short
A peptide fraction made from spirulina. It carries antioxidant activity and supports a more elastic, comfortable barrier. Often used in barrier‑first and firmness‑focused formulas.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Barrier · Firmness
Best used
Anytime
What it is
Peptide fraction from Arthrospira platensis (spirulina); INCI peptide form distinct from spirulina extract, powder, or biomass entries; enzymatic hydrolysis produces phycocyanin-derived peptides with antioxidant and collagen-stimulating activity; high phycocyanin content provides visible antioxidant profile; used in anti-aging barrier formulas.
Also found as
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Common questions
It provides antioxidant support and encourages a firmer, more resilient look. Its spirulina‑derived peptides help reinforce the skin barrier.
It generally suits most skin types, including sensitive, thanks to its gentle barrier‑supporting profile. The antioxidant activity can help the skin look less stressed.
You’ll find it in serums, essences, or creams aimed at comfort and firmness. It pairs well with hydrating ingredients.
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Personal guidance only · For clinical concerns, see a dermatologist.