humectant · active
Hydrolyzed Keratin
Generally safe·Moderate evidence
A protein fragment derived from animal keratin that helps hair retain moisture and improves strength and shine. It is well tolerated across hair types and does not carry the allergen risk of plant-derived hydrolyzed proteins.
Products with Hydrolyzed Keratin
- 100LibredermCollagen Rejuvenating Face Cream
- 95Dr.Jart+Rejuvenating Beauty Balm
- 92Rimmel LondonScandalEyes Reloaded Mascara
- 90TRESemmeKeratin Smooth Shampoo
- 88Centellian24Madeca Cream Time Reverse
- 88St. IvesRenewing Collagen Elastin Body Lotion
- 87Centellian24Expert Madeca Cream Active Renew PDRN
- 85Color WowColor Security Conditioner
- 82Gold BondUltimate Healing Skin Therapy Lotion with Aloe
- 80OUAIMedium Hair Conditioner
- 79NexxusKeraphix Damage Healing Treatment Masque
- 74SheaMoisture100% Pure Jamaican Black Castor Oil Leave-In Conditioner
- 73Aunt Jackie'sFix My Hair Intensive Repair Conditioning Masque
- 73TRESemmeKeratin Smooth Conditioner
- 71SheaMoisture100% Virgin Coconut Oil Leave-In Treatment
- 68HaskellCavalo Forte Condicionador
- 64SkinMedicaTNS Essential Serum
- 59Mario BadescuSeaweed Night Cream
- 48It's a 10Miracle Leave-In Product
References
Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.