Formulated without silicones, this shampoo works to strengthen and thicken fine and fragile hair. It acts directly on the hair fiber, helping to give it more substance, so it looks more voluminous. Hair feels stronger and more resistant, and is visibly thicker. Proven effectiveness : - HAIR IS 3X STRONGER* - HAIR IS 3X MORE RESISTANT* The combination of a blend of essential oils and a specific ingredient provides an aromatic experience and enhanced effectiveness: ● 5 essential oils: Rosemary (from Provence), Lemon, Juniper, Ylang-Ylang and Cedar form a natural complex with invigorating properties ● Vegetal Keratin: this naturally derived protein, from plants rich in amino acids, helps to strengthen and increase the volume of the hair fiber *Instrumental test using the Strength & Volume routine (shampoo, conditioner and strenghtening scalp serum) compared to untreated natural hair.