Guinot Sérum Dépil Logic 2x8ml Guinot Sérum Dépil Logic 2x8ml A salon treatment serum that slows body hair regrowth by attacking hair at the root whilst also soothing the skin and reducing irritation. Contains x2 serums. Key Ingredients Bulbaine is a powerful plant complex that visibly slows hair regrowth in two ways: it locally inhibits the enzyme involved in hair growth and it breaks down the structure of keratin to make hair thinner. The skin is soft and hair-free for longer.