K18 HeatBounce Conditioning Heat Protectant – 8 oz
K18 HeatBounce is a leave-in conditioning heat protectant powered by patented resilicore™ heat-shielding technology that defends hair from cuticle to cortex up to 450°F. It detangles, softens, and delivers 85% less breakage after blow drying while protecting against color fade, dryness, and frizz.
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- Protects hair from cuticle to cortex up to 450°F (232°C)
- Powered by patented resilicore™ heat-shielding technology inspired by resilin protein
- Clinically shown to reduce breakage by 85% after blow drying
- Leave-in conditioning formula that detangles and softens without weighing hair down
- Helps prevent color fade, dryness, dullness, and frizz caused by heat
- Suitable for use before blow drying (on damp hair) and hot tools (on dry hair)
- Large 8 oz salon-size bottle
- Free from buildup-causing residue; lightweight and non-coating
Water (Aqua) (Eau), Cellulose Gum, Isopentyldiol, Propanediol, Cetearyl Alcohol, Isopropyl Palmitate, Sodium Benzoate, C13-15 Alkane, (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
- Apply throughout sectioned hair, brushing through to ensure even distribution.
- Start with a small amount and build as needed — hair should feel soft and tangle-free, not coated.
- Use on towel-dried hair before blow drying.
- Reapply on dry hair before using hot tools such as a flat iron or curling iron.
- Reapply every time you switch between heat tools for continuous protection.
- Finish with K18 molecular repair hair oil for added shine if desired.
Free U.S. shipping on orders over $20 — $4.95 flat rate under $20 (USPS Ground Advantage, 2–5 business days). Orders placed before 2:00 PM PT ship the same day.
Unopened, sealed items may be returned within 30 days of delivery. See our Shipping Policy and Refund Policy for full details.
- Free U.S. shipping on orders over $20
- Same-day shipping on orders before 2:00 PM PT
