CurlBond Re-Coiling Treatment Mask is a rinse-out mask from DevaCurl for damaged waves, curls, and coils, built around the brand's CurlBond Complex, paired with plant-derived conditioning agents. DevaCurl designed it for hair stressed by coloring as well as by heat styling, brushing, protective styles, or friction. It's applied to clean, wet curls and left on for 15 to 20 minutes before rinsing and styling as usual, used weekly or as needed rather than with every wash. DevaCurl states the complex is intended to strengthen strands to reduce breakage and help re-coil curls that have lost their pattern from damage. This is a rinse-out step, not a leave-in product. DevaCurl's CurlBond Re-Coiling Split End Serum is the leave-in option in the same line, meant for ongoing split-end and frizz maintenance between mask uses.