A professional-grade bond-building hair treatment for a deep penetration to provide instant inside-out repair, up to 75% improvement in damage* + up to 72% stronger hair*. This treatment can be rinsed out or left in, allowing you to customize it to your hair's needs. It offers immediate transformation in just one use, resulting in thicker-looking strands and improved resilience. The formula repairs split ends, reduces breakage, and moisturizes, while also softening, controlling frizz, and enhancing shine. It is suitable for all hair types and textures. Fenty Hair's signature warm, ambery floral fragrance envelops you in notes of sparkling yuzu, golden amber, soothing florals, indulgent vanilla, and creamy sandalwood. *Based on an 8-week clinical study on 31 people when used as a leave-in. **Based on a clinical study with 31 people across all hair types when rinsed out.