K18 HeatBounce Heat Protectant Spray — 4 fl oz Lightweight Leave-In, 450°F Thermal Defense & Detangles

K18 HeatBounce Conditioning Heat Protectant Spray is a lightweight leave-in that detangles, softens, and shields hair up to 450°F (232°C) while reducing breakage after blow drying.*

Designed for all hair types and textures, K18 HeatBounce combines conditioning benefits with advanced thermal defense in a convenient spray. Use it before blow drying, flat-ironing, or curling to smooth strands, ease comb-through, and help protect against styling stress. The formula is thin enough for layering and safe for use on extensions, delivering feel-good slip without weighing hair down.

How does this spray protect hair from heat styling?

HeatBounce forms a lightweight protective barrier that helps reduce direct thermal damage during styling up to 450°F (232°C). It also improves combability so hot tools glide more smoothly, which can reduce mechanical breakage.

• Thermal protection rated up to 450°F (232°C)
• Lightweight spray for even coverage on damp or dry hair
• Reduces breakage through improved slip and conditioning

Will it make my hair feel heavy or greasy?

No — the HeatBounce formula is designed to be weightless and rinseless, leaving hair soft without residue. It provides conditioning slip and manageability while keeping natural movement and volume intact.

• Leave-in conditioning texture that won’t weigh hair down
• Rinseless, fast-absorbing spray for quick styling routines
• Suitable for fine to thick hair types

How do I use HeatBounce for best results?

Spray evenly onto towel-dried or dry hair, focusing on mid-lengths and ends, then comb through to distribute. Proceed to blow-dry or apply heat tools as usual; it’s also safe for use on extensions when applied sparingly.

• Shake, spray from 6–8 inches, and comb through
• Use before blow-drying, flat-ironing, or curling
• Layer with other styling or treatment products as needed

What tangible benefits can I expect during styling?

In addition to heat defense, HeatBounce improves manageability and detangling, helping tools move smoothly while softening hair texture. According to product data, blow drying with this formula can result in significantly less breakage compared with styling without it.*

• Detangles and reduces snags for faster styling
• Softens surface texture for smoother finishes
• Compatible with color-treated and chemically processed hair

Who this is for: K18 HeatBounce Conditioning Heat Protectant Spray is made for anyone who styles with heat and wants a lightweight leave-in that improves slip, softens strands, and offers high-temperature protection. It’s a practical choice for people with fine, medium, or thick hair, textured hair types, and those who wear extensions and need a non-greasy protective layer. Whether you’re a daily styler or occasional heat user, this 4 fl oz spray helps streamline your routine while prioritizing smoother, more manageable hair.*

Ingredients

Water (Aqua) (Eau), Cellulose Gum, Isopentyldiol, Propanediol , Cetearyl Alcohol, Isopropyl palmitate, Sodium Benzoate, C13-15 alkane, sh-Oligopeptide-78 s-Fruit Fly Oligopeptide-1, (sh-Oligopeptide-78 s-Fruit Fly Oligopeptide-1) Peptides, Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein, Helianthus Annus (Sunflower) Seed Oil , Oryza Sativa (Rice) Bran Extract, Helianthus Annuus (Sunflower) Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Behentrimonium Chloride, Brassicatrimonium Chloride, Gluconolactone, Arginine, Coco-Glucoside, Lactic Acid, Cellulose, C12-20 Alkyl Glucoside, Citric acid , Potassium Sorbate, Benzyl Alcohol, Isopropyl Alcohol, C14-22 Alcohols, Fragrance (Parfum), Amyl Salicylate, Benzyl Salicylate, Citronellol, Citrus Aurantium Peel Oil, Dimethyl Phenethyl Acetate, Geraniol, Geranyl Acetate, Isoeugenyl Acetate, Limonene, Linalool, Linalyl Acetate, Pinene, Tetramethyl Acetyloctahydronaphthalenes, Vanillin.