About Bolt Threads

Founded in 2009, Bolt Threads is a U.S. biomaterials company with core capabilities in fermentation and protein engineering. Bolt transforms inputs of yeast, sugar, salt, and water into high-performance, renewable biomaterials for multiple industries, including beauty. In the cosmetics industry, Bolt Threads helps to redefine ingredient paradigms by offering Vegan Silk technology platforms, which act as biodegradable film formers, texturizers, and sensorial enhancers for skin, hair, and color cosmetics. Their protein-based biomaterials provide alternatives to silicones and keratins while delivering benefits like pollution protection, improved film integrity, and a gentle sensory feel. Bolt has already seen adoption in sunscreens, hair care, and color formulations, and continues to scale up production and application diversity.