Bolt Threads is a material solutions company. With nature as our inspiration, we invent cutting-edge materials for the fashion and beauty industries to put us on a path toward a more sustainable future.

B-silk is a biobased and vegan polypeptide that has been shown to outperform silicone elastomers in beauty and personal care products. A biodegradable film former that offers both visual and sensorial benefits, b-silk delivers silky softness, environmental defense, and clinically-proven results in skincare, hair care, & color cosmetics.