Kérastase, born in France in 1964, has been a high-end professional hair care brand at the salon level from the beginning, and developed the world's first hair mask in the 70s of the last century. Kérastase hair care essential oil is mainly composed of synthetic silane, the use effect is particularly obvious, and the smell and texture are particularly high-end, and the price is also high, which is a synthetic silane hair care product at the local tyrant level.