K18 Heatbounce

Introducing HeatBounce, a weightless conditioning heat protectant from the biotech-powered haircare brand K18. Powered by the first of its kind patented ResiliCore technology, K18 continues to reimagine and redefine the hair care category.

The HeatBounce formula transforms from a lightweight cream into a fine mist that delivers conditioning without weight used before any heat tool—whether on damp or dry hair to defend against heat, mechanical damage and UV environmental damage that can cause color fade, dryness, dullness, and breakage.

ResiliCore is a patented heat-shielding technology inspired by resilient proteins found in nature, known for their flexibility and ability to withstand extreme temperatures Unlike traditional heat protectants that sit on the surface, the size and molecular makeup of ResiliCore allow it to penetrate the cortex—where heat damage happens—offering protection up to 232°C and reducing breakage by 85% when blow drying.

“HeatBounce reflects our commitment to pushing the boundaries of hair science,” said Suveen Sahib, Co-founder & CEO of K18. “Powered by our patented ResiliCore technology, it delivers intelligent heat protection that penetrates deep into the hair fiber—reinforcing inner bonds and preserving strength by dynamically responding to heat. It’s a true breakthrough and the perfect complement to our molecular repair innovation.”

Available now at Sweetsquared.

K18Natalia Kulak