KATIVA PROFESSIONAL BRAZILIAN STRAIGHTENING PRO DARK CASE by KATIVA offers a straightening solution specifically designed for natural and dark hair, delivering professional results that can last up to 12 weeks. This cutting-edge treatment features a unique formula that combines Glyoxylic Acid and Vegetable Keratin, ensuring effective straightening without the use of formaldehyde, thus preserving the integrity of both the internal and external hair structures. Additionally, the formula includes Organic Coconut Oil, Keratin, and Açaí Oil, giving it potent antioxidant properties that enhance hair's smoothness, movement, softness, and shine. Key advantages include: Use of natural ingredients, effective straightening of curls, waves, and frizz, enhanced shine, softness, and manageability, along with thermal protection and memory.