Ingredient guide
Spirulina Peptide
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 to be featured
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.
What the evidence says
LimitedPeptidesapplied to skin
Early, encouraging evidence in relation to smoother-looking skin. A genuinely active research area.
Studied as palmitoyl-KTTKS.
Much of the evidence is small, split-face and manufacturer-sponsored.
See 2 sources
Palmitoyl-KTTKS is dermally stable and skin-permeable; relates to the type-I collagen precursor sequence.
skin permeation, dermal stability · palmitoyl-KTTKS
Int J Cosmet Sci, 2014Split-face trials report wrinkle/roughness improvement; evidence base modest and mostly manufacturer-led.
wrinkles, roughness
Cosmetics, 2017
Also found as
Related
Where to find it
MIRU hasn't verified a catalogue pick that leads with spirulina peptideyet. The Lens can check any product you're considering.
Search the Lens for spirulina peptideCommon questions
What does Arthrospira platensis peptide do?
It provides antioxidant support and encourages a firmer, more resilient look. Its spirulina‑derived peptides help reinforce the skin barrier.
Is Arthrospira platensis peptide good for sensitive skin?
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.
How is Arthrospira platensis peptide used?
You’ll find it in serums, essences, or creams aimed at comfort and firmness. It pairs well with hydrating ingredients.
Stay in the loop
Get notified when MIRU launches and new features drop.
Unsubscribe anytime.
Checking a product label? Use the product checker to rate the full list against your current focus.
Personal guidance, not medical advice.