The Cadiveu BTX Vegan is a game-changer in the world of hair smoothening, offering 1-step smoothening with maximum durability. This revolutionary formula, enriched with highly concentrated glyoxylic acid, effortlessly penetrates deep into the cortex, restructuring the hair strands for smoothness that lasts up to 45-50 washes. What sets it apart is the infusion of vegetal collagen, a potent natural active ingredient abundant in amino acids.