K18 Biomimetic Hairscience HeatBounce™ Leave-In Conditioner Heat Protectant
by K18 · hair_care
Editor's Take
K18 earns its treatment price here: serious heat defense without silicone weight, though the perfumed finish is less modern than the peptide work.
Four-pillar formula scores
- Performance: 8.5 / 10
- Innovative Ingredients: 8.8 / 10
- Clean Standards: 7.8 / 10
- Formula Sustainability: 8.7 / 10
The Verdict
Efficacy is Excellent, with K18Peptide supporting hair integrity while Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein forms a protective film for regular blow-drying. Technology is Highly Advanced, and the C13-15 Alkane keeps the finish lighter than a conventional silicone-heavy protectant. Clean is Excellent and sustainability is Good, though undisclosed fragrance and multiple fragrance allergens are the clear trade-off. A credible premium pick for frequent heat styling.
Full INCI list
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.