Cosmax and POSTECH Develop Platform to Control Release Rates of Cosmetic Ingredients
Creatrip Team
2 months ago
Cosmax, in partnership with Professor Hyo-Min Lee and Dr. Eun-Seo Kim’s chemical engineering team at POSTECH (Pohang University of Science and Technology), has developed a 'multi-emulsion platform' that precisely controls the stability and delivery rate of active cosmetic ingredients. Published in Science Advances, the research improves on traditional W/O/W (water-in-oil-in-water) multiple emulsions, which offered good feel and hydration but suffered from instability and low ingredient delivery. The team found that polymeric surfactants strengthen the emulsion film for greater stability, while small-molecule surfactants regulate the rate at which internal ingredients move outward. By combining these surfactants, they created a tunable platform to optimize release speed for different product needs. Cosmax will first apply the technology to next-generation, long-lasting high-performance sunscreens developed at the Pohang UIC (UV Innovation Center), controlling how long and how quickly UV-blocking ingredients remain on the skin to boost both efficacy and safety.
