Coffee Elf turns spent coffee grounds into bio-based materials and cosmetic ingredients, positioning itself as the U.S.'s first coffee-based biorefinery. Its “Coffee Bio-Alchemy” process uses solvent-free extraction and repurposes the remaining fibrous biomass for products such as sustainable textiles, helping divert coffee waste into new uses across beauty, fashion, and wellness. Based in New York, the company describes its circular-economy work as a way to support women, communities, and nature.