Trends in Biopolymer Science Applied to Cosmetics

The document discusses the use of biopolymers in cosmetics, including proteins like collagen, elastin, silk, and keratin, and polysaccharides like Chitosan, Hyaluronic Acid, Sodium Alginate, Starch, Xanthan Gum, and Carrageenan. Biopolymers are non-toxic, biocompatible, and biodegradable, making them ideal for cosmetic formulations. They are used as emulsifiers, conditioners, and more, with specific benefits such as skin hydration, anti-ageing effects, and promoting extracellular matrix remodelling. For instance, collagen can penetrate the skin, retain water, and stimulate the production of new collagen, elastin, and hyaluronic acid. Keratin has been reported to enhance hair growth. Each biopolymer has its own set of advantages, disadvantages, and safety considerations. Future advancements in biotechnology are expected to lead to new applications for biopolymers in cosmetics.