Preparation and characterization of collagen/chitosan/hyaluronic acid thin films for application in hair care cosmetics

In this study thin films based on a blend of collagen, chitosan and hyaluronic acids were prepared and their surface and mechanical properties were studied. The structure of the films was studied using FTIR spectroscopy, contact angle measurement and AFM images. Swelling and mechanical analyses were also performed. The hair protection possibility of collagen/chitosan/hyaluronic was studied using SEM microscopy and the mechanical testing of hair coated by the blends. It was found that the addition of hyaluronic acid to a collagen/ chitosan blend improves the mechanical resistance of biopolymeric films. Samples with the addition of hyaluronic acid were more stable in aqueous conditions and provided higher roughness of surface.