Kerastase • Lotion Densitive GL • spray texture • thickening treatment • NWT What It Is: A hair texturizer and thickening treatment What It Does Volumizes fine and thinning hair KEY INGREDIENTS: Vitamin B3 (scalp cooling agent); Hairgrip Star Complex (hair volumizer and texturizer) HOW IT FEELS/SMELLS/LOOKS: This light spray, which has a creamy vanilla-like scent, refreshes the scalp on contact and leaves hair looking full and slightly defined. WHY WE LIKE IT: It may be specifically formulated for fine and thinning hair, but even thick hair types can benefit from this leave-in treatment. It soothes the scalp, and the conditioning spray inflates hair without unwanted stiffness.