Library · Skin & hair · Hair and skin structure enhancement and repair
Keratin Peptides
Keratin Hydrolysate, Hydrolyzed Hair Keratin, Keratin Protein Hydrolysate
Bioactive fragments of natural keratin, the main structural protein in hair, skin, and nails, first studied in the 1940s. Used in cosmetics to strengthen keratin structures, improve moisture retention, and support skin/hair repair; not classified as drugs, with ongoing research into wound-healing uses.
Research score 90/100. Reference only, not a dose.
- Skin Health
- Hair Growth
- Collagen Production
- Wound Healing
- Anti-aging
- US status
- Research Chemical
- Approval
- Cosmetic Use Only
- Evidence
- Bioactive peptides derived from keratin. Used for hair/skin/nail health and as wound healing biomaterials.
- Research score
- 90 / 100
- Indication
- Cosmetic/Anti-aging
- Origin
- Germany
- Source category
- Skin & Dermatology
- Status group
- Research chemical
Mechanism
Penetrates skin and hair to act as building blocks and signals, stimulating keratin (K5, K14, K15) synthesis and collagen production via TGF-β signaling, while forming a protective scaffold and activating keratinocyte growth factor receptors for cell proliferation and repair.
Safety file
Excellent safety profile; non-toxic, non-irritating, biocompatible, and well tolerated orally.
- Well-tolerated with minimal side effects