Hydrolyzed Chitin

Hydrolyzed chitin is derived from crustacean shells, particularly shrimp and crab. Through hydrolysis (breaking down the polymer chains using acid), the chitin is converted into smaller, more soluble molecules that can be incorporated into skincare and haircare formulations.In cosmetics, hydrolyzed chitin functions primarily as a skin and hair conditioning agent. It forms a lightweight film on the surface, helping to improve moisture retention and smoothness. The ingredient is valued for its ability to integrate into formulations without the heaviness of larger molecular structures.

Hydrolyzed chitin works through two primary mechanisms. First, its molecular structure allows it to adhere to the skin and hair surface, creating a conditioning film that reduces transepidermal water loss and improves tactile smoothness. Second, preliminary research indicates that certain chitin derivatives possess antioxidant properties, potentially helping to counteract oxidative stress caused by environmental factors.The smaller molecular weight achieved through hydrolysis makes this form of chitin more suitable for absorption and integration into skincare products compared to native chi…

Hydrolyzed chitin is typically found in rinse-off products (shampoos, conditioners) and leave-on formulations (serums, moisturisers). When used in haircare, allow the product to remain on the hair for a few minutes to maximise conditioning benefits. In skincare, use as directed by the specific product; it pairs well with other hydrating and antioxidant ingredients without risk of incompatibility.

Hydrolyzed chitin is generally well-tolerated and considered safe for topical use. Those with shellfish allergies should exercise caution, as the ingredient is shellfish-derived, though the processing may minimise allergenic risk.