Amorepacific has demonstrated the efficacy of its two proprietary ingredients in improving skin aging and immune response through a program with the Johns Hopkins School of Medicine, US. The cosmetics company’s RE.D Flavonoid, derived from the camellia plant, was found to improve photo-aging symptoms on the face and neck without irritation. Meanwhile, Senomune, a saponin component from green tea extract, showed that it mitigated immune cell damage and inflammatory responses caused by particulate matter.