Ingredient guide
Knotted Wrack Peptide
ascophyllum nodosum peptide
In short
Knotted wrack peptide is a marine peptide fraction that supports smoother-looking texture and visible firmness. Its fucan‑linked peptide complexes help the skin look more refined over time.
Reviewed against published evidence · editorially independent · no brand pays to be featured
What it is
Peptide fraction from Ascophyllum nodosum (knotted wrack); INCI peptide form distinct from ascophyllum extract entries; sulfated fucan-peptide conjugates from hydrolysis support matrix metalloproteinase inhibition and surface texture improvement; sustainable wild Atlantic seaweed source; applied in anti-aging texture-refinement 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 knotted wrack peptideyet. The Lens can check any product you're considering.
Search the Lens for knotted wrack peptideCommon questions
What does Knotted Wrack Peptide do for skin?
It helps improve the look of surface texture and supports firmness through antioxidant and matrix‑supportive activity.
Who might benefit from Knotted Wrack Peptide?
Anyone interested in surface-smoothing or gentle firmness support may find it helpful, across most skin types.
How is Knotted Wrack Peptide used?
It appears in serums and creams designed for texture refinement and marine‑based antioxidant blends.
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.