Silk proteins are highly valued in the cosmetics industry for their nourishing, moisturizing, and anti-aging properties. They are often used in a variety of skin and hair care products, including moisturizers, serums, masks, shampoos, and conditioners. And there are several reasons why.
Silk cocoons contain two main proteins that are commonly used in cosmetics: fibroin and sericin. These are the main beneficial ingredients that can be extracted from these proteins and used in cosmetics:
Amino acids: Both fibroin and sericin are rich in amino acids, which are the building blocks of proteins. Amino acids help to nourish and strengthen the skin and hair.
Antioxidants: Silk proteins contain antioxidants that can help to protect the skin from free radical damage, which can accelerate the aging process.
Moisturizers: Silk proteins have excellent moisture-binding properties and can help to keep the skin hydrated, soft, and supple.
Film-formers: The unique molecular structure of silk proteins allows them to form a protective film on the skin and hair, which can help to reduce damage and improve texture.
Soothing agents: Sericin has been shown to have anti-inflammatory properties, which can help to soothe and calm irritated skin.
Collagen boosters: Sericin has been found to stimulate collagen production, which can help to improve the elasticity and firmness of the skin.