The K18 Mini HeatBounce Leave-In Conditioner Heat Protectant is engineered for anyone who styles with heat and wants stronger, smoother, more resilient hair. Powered by Resilicore™ heat-shielding technology, this lightweight leave-in conditioner works from the cuticle to the cortex to defend against extreme temperatures up to 450°F (232°C). Whether your hair is straight, wavy, curly, coily, fine, medium, or thick, this formula conditions, softens, and detangles while supporting long-term hair strength. Even extensions benefit from its protective and conditioning performance.
What sets this formula apart is its ability to fortify hair from within—drawing inspiration from resilin, a protein known to withstand high heat and intense movement. The result is up to 85% less breakage after blow-drying, along with lightweight conditioning that never weighs the hair down. Clinical testing shows a measurable increase in protein stability and consistent heat protection up to 450°F, making it a powerful guardian against damage caused by flat irons, blow-dryers, and styling tools. With every use, hair feels softer, smoother, and more protected, helping you maintain shine, manage dryness, and style with confidence.
