K18 HeatBounce Conditioning Heat Protectant Spray — 4 fl oz, lightweight leave-in with 450°F thermal protection & detangle

K18 HeatBounce Conditioning Heat Protectant Spray is a lightweight leave-in that detangles, softens and protects hair from styling heat up to 450°F (232°C).

Designed for all hair types and textures, this conditioning heat protectant doubles as a leave-in treatment that smooths strands while providing advanced thermal defense. The formula is crafted to reduce friction during styling, make wet-to-dry blowouts easier, and help preserve hair integrity when using high-temperature tools. It is also safe for use on extensions and integrates easily into daily routines without weighing hair down.

How does HeatBounce protect hair from high-temperature styling?

HeatBounce creates a lightweight protective layer that resists temperatures up to 450°F (232°C), helping reduce damage from heat tools. The spray is formulated to remain breathable so hair stays flexible while being shielded during blow-drying, flat-ironing, or curling.

• Thermal resistance rated to 450°F (232°C) for robust tool protection.
• Leave-in texture that avoids heaviness and buildup.
• Reduces friction for smoother glide of brushes and irons.

Will this product help reduce breakage when I blow-dry?

Clinical testing demonstrates significant reduction in breakage after blow-drying when HeatBounce is applied prior to styling. By conditioning and detangling wet hair, the spray decreases mechanical stress and helps hair pass more smoothly through brushes and hot tools.

• Shown to reduce breakage in controlled testing — supporting gentler styling.
• Detangles to minimize tugging and snapping while blow-drying.
• Lightweight film helps hair withstand mechanical stress from styling tools.

How do I use K18 HeatBounce in my styling routine?

Use HeatBounce on damp, towel-dried hair before heat styling: mist evenly, comb through, then proceed to blow-dry or finish with hot tools as needed. It also works as a finishing spritz on dry hair for extra slip and sheen before curlers or straighteners.

• Mist onto damp hair, focus from mid-lengths to ends for even coverage.
• Comb or brush to distribute product and detangle before styling.
• Proceed to blow-dry, flat-iron, or curl — rated up to 450°F (232°C).

Is HeatBounce suitable for my hair type or for extensions?

HeatBounce was formulated for all hair types and textures, from fine to coily, and is gentle enough to use on extensions. Its lightweight conditioning properties help maintain softness and manageability without leaving a heavy residue or compromising attachment points.

• Works on fine, medium, thick, curly, and textured hair types.
• Safe for use on human-hair extensions and wefts when applied away from bonds.
• Non-greasy finish keeps volume and movement intact.

Who is this for: K18 HeatBounce Conditioning Heat Protectant Spray is ideal for anyone who heat-styles regularly and wants a multipurpose, leave-in product that detangles, softens, and offers advanced thermal defense. It's a strong choice for stylists, people with fragile or styled hair, and users of hair extensions who need protection at high temperatures without added weight.