K18 HeatBounce Conditioning Heat Protectant Spray — 4 fl oz Lightweight Leave-In, 450°F Protection & Detangle

K18 HeatBounce Conditioning Heat Protectant Spray is a lightweight leave-in that detangles, softens, and protects hair from heat up to 450°F while helping reduce breakage during blow-drying.

Designed for all hair types and textures, this 4 fl oz spray works as a conditioning heat protectant and detangler you can use before styling. It layers easily under styling products, rinses out without residue, and is formulated to be safe for chemically treated hair and extensions. The formula focuses on smoothing strands and minimizing friction from hot tools for a sleeker finish.

How does HeatBounce protect hair from hot tools?

HeatBounce forms an invisible, lightweight barrier that helps hair withstand higher temperatures while preserving softness and elasticity. It reduces friction between the tool and the strand surface, lowering the chance of stress and snapping during styling.

• Protects up to 450°F (232°C) for thermal styling
• Lightweight film to minimize weight and buildup
• Works on wet or damp hair prior to blow-drying or flat ironing

Will HeatBounce make my hair feel heavy, oily, or limp?

No—HeatBounce is formulated as a lightweight leave-in so it conditions without weighing hair down. It provides slip for detangling and smoothing while rinsing out easily during the next wash if desired.

• Non-greasy finish preserves natural movement
• Leaves hair soft and manageable rather than stiff
• Suitable for fine to thick textures when used sparingly

Can I use this on hair extensions and colored or chemically treated hair?

Yes. The spray is safe for use on extensions, color-treated, bleached, and chemically processed hair. It helps protect delicate lengths and bonds from mechanical and thermal stress during styling.

• Safe for human-hair extensions and bonded pieces
• Compatible with color and chemical treatments
• Helps reduce breakage during blow-drying and hot-tool styling

How do I apply HeatBounce for best results?

Apply evenly to damp, towel-dried hair before blow-drying or heat styling. Comb or finger-detangle to distribute the product, then proceed with your preferred tools and techniques.

• Spray 6–8 inches from hair, concentrating on mid-lengths and ends
• Use a wide-tooth comb or brush to spread the product evenly
• Layer with styling creams or serums as needed for hold or shine

Who is this for: HeatBounce is ideal for anyone who regularly uses heat styling—whether you blow-dry, flat-iron, or use curling tools—and wants a lightweight conditioner that detangles and protects. It suits fine, medium, and thick hair, as well as textured and chemically treated strands and extensions, for easier styling and reduced breakage during thermal styling sessions.