epres is a performance-first, scientifically led beauty company focused on sustainable technologies in haircare and nailcare. epres develops cutting-edge solutions for all hair types and uses balanced science to deliver the healthiest hair possible. epres and ePhD offer bond repair in professional-grade formulas that are easy to use and biodegradable, focusing on bond repair in a way that is safer for both the body and the planet. The result is groundbreaking “biodiffusion technology,” a proprietary liquid molecule that continues to repair broken disulfide bonds in hair and nails; in one simple step.