-39.34% BIOTHERM LIFE PLANKTON ELIXIR Anti-wrinkle and Anti-aging Regular price €77.40 -39.34% Price €46.95 Anti-aging serum that transforms the skin quickly and lastingly. Its formula composed of hyaluronic acid hydrates and plumps the skinfrom the inside out; while life plankton activates and enhances the regenerative properties of the skin.