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K18 Heatbounce 118ml

Ideal For

blow-dry defence damaged dry heat protection K18
K18

K18 Heatbounce 118ml

$84.95

This leave-in conditioner doubles as a powerful heat protectant, helping to detangle, soften, and shield hair with advanced protection—reducing breakage by up to 85% after blow-drying.

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Two products in one bottle: a leave-in conditioner that detangles and softens, and a heat protectant you can style over immediately. If your routine runs shampoo, leave-in, then dryer, this collapses two steps into one — useful for damaged or dry hair that needs both the slip and the shield.

The actives

  • ResiliCore heat-shielding technology — K18's system, formulated to work through the cuticle into the cortex rather than only coating the outside.
  • K18PEPTIDE (sh-oligopeptide-78) — the brand's patented peptide.
  • Hydrolysed barley protein — a small protein that helps reinforce weakened sections of the strand.
  • Sunflower seed oil and rice bran extract — light conditioning oils that give the slip for detangling.

How to use it

On towel-dried hair before blow-drying, or on dry hair before irons. Section and brush through so it lands evenly. Start with a small amount and build — hair should feel soft and smooth, not coated. No waiting time: it protects on contact, up to 232°C.

Worth knowing

Light enough for fine hair provided you are honest about quantity. Over-apply and any leave-in will read greasy at the root.

Apply to towel-dried hair before blow-drying or to dry hair before using hot tools.

Brush through sectioned hair for even distribution. Start with a small amount and build as needed. Hair should feel soft and smooth, not coated.

Style as usual.

Water (Aqua) (Eau), Cellulose Gum, Isopentyldiol, Propanediol, Cetearyl Alcohol, Isopropyl Palmitate, Sodium Benzoate, C13-15 Alkane, sh-Oligopeptide-78, Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein, Helianthus Annuus (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.

Two products in one bottle: a leave-in conditioner that detangles and softens, and a heat protectant you can style over immediately. If your routine runs shampoo, leave-in, then dryer, this collapses two steps into one — useful for damaged or dry hair that needs both the slip and the shield.

The actives

  • ResiliCore heat-shielding technology — K18's system, formulated to work through the cuticle into the cortex rather than only coating the outside.
  • K18PEPTIDE (sh-oligopeptide-78) — the brand's patented peptide.
  • Hydrolysed barley protein — a small protein that helps reinforce weakened sections of the strand.
  • Sunflower seed oil and rice bran extract — light conditioning oils that give the slip for detangling.

How to use it

On towel-dried hair before blow-drying, or on dry hair before irons. Section and brush through so it lands evenly. Start with a small amount and build — hair should feel soft and smooth, not coated. No waiting time: it protects on contact, up to 232°C.

Worth knowing

Light enough for fine hair provided you are honest about quantity. Over-apply and any leave-in will read greasy at the root.

Apply to towel-dried hair before blow-drying or to dry hair before using hot tools.

Brush through sectioned hair for even distribution. Start with a small amount and build as needed. Hair should feel soft and smooth, not coated.

Style as usual.

Water (Aqua) (Eau), Cellulose Gum, Isopentyldiol, Propanediol, Cetearyl Alcohol, Isopropyl Palmitate, Sodium Benzoate, C13-15 Alkane, sh-Oligopeptide-78, Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein, Helianthus Annuus (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.

Frequently Asked Questions

Q. How does HeatBounce protect hair more deeply than traditional heat protectants?

A. K18 HeatBounce uses patented ResiliCore™ heat-shielding technology, which penetrates deeper into the hair fibre — from cuticle to cortex — to fortify internal bonds against high temperatures up to 232 °C (450 °F). This method defends hair more effectively than traditional protectants that only coat the surface, helping reduce breakage and maintain strength.

Q. Do I need to wait after applying HeatBounce before using heat tools?

A. No. Unlike some heat protectants that require activation time, HeatBounce works immediately upon application. After applying the lightweight leave-in throughout towel-dried or dry hair and brushing through, you can use blow dryers, straighteners or curling tools right away for smooth, protected styling.

Q. Will this leave-in conditioner weigh hair down?

A. No. The formula is designed to be lightweight and non-greasy. When applied evenly and in moderation, it detangles and smooths without leaving heavy residue, making it suitable for most hair types, including fine hair.

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K18 Heatbounce 118ml

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