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Quantity
1
A discovery-sized version of our leave-in conditioning heat protectant detangles, softens, and delivers deeper heat protection than ever before*—for 85% less breakage after blow drying*.
*k18hair.com/disclaimers
Reviews
4.7
30 ratings
5
4
3
2
1
LOVE K18!
I have heavily foiled/lightened my hair for years and K18 is a lifesaver for keeping it healthy looking, strong, and soft. I make sure that I never run out!
D
Dawn · May 30, 2026
Heat protectant works well
I had been quite satisfied with my leave in protectant from another wellknown company, but I received a Heatbounce sample with my first K18 hair repair purchase and was amazed with the results. Nice light fragrance is a big plus for me. I have been known to throw away products if the scent is too overpowering.
L
LOIS · March 20, 2026
Good stuff
Hair feels soft and shiny not dry when applying before a hot brush or flat iron touch up
