Hydrolyzed Keratin
Hair and Skin Conditioning Agent
Hydrolyzed keratin is a type of protein that's been broken down into smaller pieces. It's often used in hair and skin products to help make them feel softer and more moisturized.
Source: FDA GRAS list
Hydrolyzed keratin is generally considered safe for use in personal care products, as it's easily broken down by the body and doesn't cause any known allergic reactions.
r/traderjoes
[NEW] April 2026 Hair Products - Trader Joe's Sulfate-Free Bonding Shampoo & Bonding Conditioner (“powered by plant-based bonding agents and formulated with hydrolyzed keratin & silk”) - $7.99 each, sold separately [as with any product, arrival dates may vary]
Comprehensive assessment of hydrolyzed pig hoof keratin (HPHK) as a potential food ingredient: Stability, techno-functional properties, in vitro, and in silico bioactivities.
Wang R, Zhang Y, Cui H
2026
Read on PubMedLast updated: May 16, 2026