K18 HeatBounce Conditioning Heat Protectant

Deeper Heat Protection for Every Blow-Dry, Curl and Straighten

K18 HeatBounce builds heat protection into your hair routine without weighing down your hair. The fine mist spreads evenly through sectioned hair. Your hair feels softer and tangle-free straight away, not coated or sticky. Heat styling is part of daily life for most of us, whether it’s a quick blow-dry before work or styling tongs for a night out. Over time, repeated heat leaves hair dry, dull, brittle and prone to snapping, and colour fades faster.

The formula is built around K18’s resilicore™ heat-shielding technology. It’s inspired by resilin, a natural protein that can withstand extreme temperatures. Traditional heat protectants coat only the outer cuticle. The size and molecular make-up of resilicore let it reach deeper into the hair’s inner cortex, where heat damage can occur***. There it forms a protective shield that strengthens the hair from within. It’s paired with a conditioning blend that softens and can help detangle even damaged hair.

The result is 85% less breakage after blow-drying***** and protection against heat up to 232°C. In K18’s testing it also helped protect against colour change**** and dryness and dullness caused by heat. HeatBounce is gentle enough for all hair types and textures, and you can use it on hair extensions too.

The spray has a light, fresh fragrance and dries without residue. That makes it easy to layer with the rest of your routine.

Key ingredients:

• Resilicore Heat-Shielding Technology: Inspired by resilin, a natural heat-resistant protein. It reaches into the cortex for protection from within*
• K18 Peptides: Sh-Oligopeptide-78 known as K18Peptide is a bioengineered peptide at the heart of K18’s technology for structural hair repair
• Conditioning Blend: Hydrolysed barley protein, sunflower seed oil and conditioning agents to soften and detangle
• Botanical Antioxidants: Rice bran, sunflower and rosemary leaf extracts with vitamin E (tocopherol)

Benefits:

• Heat Protection up to 232°C: For blow-drying, straightening and curling
• 85% Less Breakage: After high-heat blow-drying*****
• Deeper Protection: Defends from the cuticle** to the cortex***, going as deep as heat damage goes
• Conditions & Detangles: A lightweight formula that softens even damaged hair
• No Waiting: No activation time needed. Style straight away after applying.
• All Hair Types & Textures: Including extensions
• Vegan
• Cruelty free
• Sulphate free
• Paraben free
• Phthalate free
• Silicone free
• Formaldehyde free

How to use:

• Section towel-dried hair
• Spray throughout, starting with about 3 sprays and adding more as needed
• Brush through to distribute evenly
• Blow-dry straight away. There’s no need to wait
• Before using straighteners or curling tongs, apply again to dry hair
• Reapply every time you use heat, including when you switch from blow-drying to hot tools

We recommend: For the full K18 routine, apply the K18 Leave-In Molecular Repair Hair Mask after shampooing and leave for 4 minutes. Then mist on HeatBounce™ before you blow-dry.

K18 HeatBounce is available buy online or CLICK & COLLECT from our Brighton & Hove salon

Contains barley protein. Ingredients can change with new batches. Always check the label before use

*Heat protection observed on hair in clinical testing after application of HeatBounce and use of a 232°C flat iron on dry hair

**Reduction in hair breakage observed in scientific testing after application of HeatBounce and use of a 232°C flat iron on dry hair

***Increase in protein stability observed in scientific testing after application of HeatBounce on damp hair and exposure to a 232°C flat iron on dry hair

****Reduction in colour change observed in scientific testing after application of HeatBounce on dry hair and use of a 232°C flat iron

*****Reduction in hair breakage observed in clinical testing after a high-heat blow-dry on wet hair