HeatBounce Conditioning Heat Protectant

HeatBounce Conditioning Heat Protectant is rated 4.8 out of 5 by 61.
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8 oz.
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What It Is

The future of heat protection. This leave-in conditioner and heat protectant in one works unlike anything else* so your hair retains health, color vibrancy, and shine through blow drying and hot tools. Prevents heat damage up to 450°F (232°C) from cuticle to cortex* while softening, smoothing, and detangling for less frizz and increased manageability for all hair types + textures.

*k18hairpro.com/disclaimers

What It Does

This conditioning heat protectant fortifies hair at the deepest level, preventing heat damage, dryness + breakage from blow drying and hot tools.

• Delivers heat protection at the core*, with patented resilicore™ heat-shielding technology to prevent heat damage up to 450°F (232°C)

• Protects against damage from heat, mechanical and environmental aggressors such as UV rays

• Lightweight moisture + hydration enhances smoothness and softness; hair feels and looks healthier without being weighed down

*k18hairpro.com/disclaimers

What Else You Need to Know

Heat protection from cuticle to the cortex*: resilicore™ heat-shielding technology is a breakthrough innovation inspired by resilin—a natural protein that can withstand extreme temperatures. Unlike traditional heat protectants that stop at hair's cuticle, resilicore™'s size + molecular makeup allows it to penetrate deep into the cortex, forming a protective shield that fortifies from within. This targeted protection delivers extended defense where hair needs it most.

Weightless conditioning: Lightweight cream transforms into a spray + binds to hair to help regulate lasting moisture balance, detangle, smooth for more manageable hair. pH-balanced formula minimizes cuticle swelling for less frizz, and more shine.

Created for all hair types + textures. Can be used on extensions.

*k18hairpro.com/disclaimers

Apply throughout sectioned hair, brushing through to help with even distribution. Less is more. Start small and build as needed. Hair should feel soft and tangle-free but not coated. Use on towel-dried hair before blow drying and on dry hair before hot tools.

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.

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 5 out of 5 by from Great K18 product! I really loved this K18 HeatBounce Conditioning Heat Protectant. My hair felt really soft and manageable even after blow-dry and iron curling. I also noticed that my hair much less damaged unlike with other products. I highly recommend it!
Date published: 2026-09-16
Rated 5 out of 5 by from Fantastic The most dependable heat protectant I have come across. After trying many heat protectants, this one passes all the tests for me. Can be used on wet, or dry hair without any added weight to the style. This outperforms any of the other heat protectants I have used. Just wish it came in a larger bottle!
Date published: 2026-09-01
Rated 4 out of 5 by from love it! This has made a world of a difference pairing with the rest of the k18 system. My only complaint is that I wish it was just a tad bit more conditioning.
Date published: 2026-08-31
Rated 5 out of 5 by from OBSESSED!! This product has given my clients the best results to their styles. All around makes the hair softer and smells amazing, it has amazing benefits and works as both a conditioning agent and a protector!
Date published: 2026-08-26
Rated 5 out of 5 by from Love! Light weight and softening beyond belief. Smells so good! Best heat protectant imo.
Date published: 2026-08-26
Rated 5 out of 5 by from My new heat protectant I love the way this product makes my hair feel and protects it!
Date published: 2026-08-19
Rated 5 out of 5 by from Could not recommend more! 10/10 The best heat protectant and makes my hair feel so good!
Date published: 2026-08-13
Rated 5 out of 5 by from K18 Heat Protection Excellent quality product. Keeps my hair silky and healthy.
Date published: 2026-08-08
  • y_2026, m_10, d_3, h_11
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  • reviews, product