Common Name(s): Hydrolyzed fish scale extract,hydrolyzed fish scale protein,bioactive peptide conditioner,substantive film-forming active
CAS Number: N/a
DESCRIPTION
What It Does: Provides substantive conditioning deposition on hair and skin from the protein hydrolysate's amino acid and peptide film, delivers bioactive peptide sequences stimulating collagen synthesis or barrier repair, and conditions through the protein film's moisture retention.
Why It's Used: Protein hydrolysates provide both immediate surface conditioning from the deposited film and downstream bioactive activity from specific peptide sequences within the hydrolysate mixture — combining aesthetic and functional anti-aging benefits.
How It Works: Enzymatic or acid hydrolysis of the source protein generates polydisperse peptide mixture (mw 200-5000 da). smaller peptides (<1000 da) penetrate sc providing receptor-mediated bioactivity; larger peptides deposit on hair/skin surface providing conditioning film. cationic amino acids (lysine, arginine) provide electrostatic substantivity to negatively charged hair cuticle.
Typically Found In: Hair care,skin care,anti-aging
TECHNICAL DETAILS
Primary Category: Active ingredient – antioxidant
Secondary Functions: Free radical scavenging,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–5%
SOURCING & ETHICS
Vegan Status: No - animal-derived
Halal Status: Conditional - species declaration required
Source Notes: Plant-derived extract or synthetic. [audit 2026-07-29 rev2: marine animal origin; permissibility varies by madhhab and species is undeclared. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Non-irritating; well-tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Vitamin c,vitamin e,ferulic acid,spf,other antioxidants
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Fish scale hydrolysate source provides the specific amino acid profile: fish scale collagen provides glycine/proline-rich sequences for collagen synthesis stimulation; silk fibroin provides serine/glycine-rich sequences for film formation; egg shell membrane provides n-acetylglucosamine for gag biosynthesis.
Last Verified: 2026-03-22
Primary Sources: Cosing database,hydrolyzed fish scale protein conditioning review