Intensive Anti-Aging Serum | You can't stop time, but you can take care of your skin so it stays young for a long time. Sesderma Retisil is an intensive anti-aging serum with active ingredients, centella asiatica extract and low molecular weight hyaluronic acid that helps restore and firm the skin for a smooth, bright and even complexion. It also improves sagging skin and the appearance of wrinkles, reducing dark spots thanks to rosehip oil.