Oubo’s repairing hair mask for split ends is a professional-grade treatment designed to mend and prevent damaged hair ends. The formula features hydrolyzed keratin, which penetrates the hair shaft to replace lost proteins, and argan oil rich in omega-6 fatty acids that seal the cuticle. Bis-aminopropyl diglycol dimaleate—a specialized bond builder—reconnects broken hair fibers, reducing split ends by 75% after 3 uses, as shown in lab tests. Shea butter and panthenol provide deep hydration, preventing further breakage. This mask is ideal for chemically treated, heat-styled, or naturally dry hair, as it addresses the root cause of split ends: moisture loss and protein damage. Users report that their hair feels stronger, looks shinier, and has fewer visible split ends after just one treatment. The rich, creamy texture is easy to apply, and it can be left on for 5–10 minutes for intensive repair. Free from sulfates and parabens, this mask is gentle enough for weekly use, helping to restore hair health and vitality.