The Silk Plus Finishing Sérum supports and protects sensitive and hyper-sensitive Skin Instants® by enriching the skin’s hydro-lipidic film. Cucumber and witch hazel soothe the skin, vitamin B3 fights free radicals and hyaluronic acid and silk extract work to moisturize the skin. Active ingredients make up more than 40% of this rich, all-inclusive serum to hydrate, regenerate, and repair signs of ageing. This delicate serum makes your skin instantly smoother and suppler, leaving a beautifully silky sensation.