
Hair Care · Clinical
We put K18 HeatBounce Conditioning Heat Protectant through our full ingredient analysis.
Chapter I · The Score
After analyzing 15 ingredients across four dimensions, our algorithm returned a verdict that surprised us.
Overall
Highly Recommended
Chapter II · The Ingredients
We scored every ingredient individually. Some impressed us. Others raised serious questions.
sh-Oligopeptide-78 s-Fruit Fly Oligopeptide-1
This novel peptide is designed for skin and hair benefits, with a generally low risk of adverse reactions.
Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein
A plant-based protein that reinforces the hair shaft and improves moisture retention significantly.
Behentrimonium Chloride
An effective detangler that may cause skin irritation in high concentrations and is toxic to aquatic life.
Brassicatrimonium Chloride
A bio-based conditioning agent that reduces static and improves combability with better biodegradability than traditional quats.
Isopropyl Alcohol
Acts as a solvent and astringent but can be drying and irritating to skin and hair, especially in higher concentrations.
Isopropyl palmitate
An emollient and moisturizer, it has a moderate comedogenic rating which may be a concern for acne-prone skin.
Fragrance (Parfum)
A complex blend of aromatic substances that contains multiple known allergens like Citronellol and Limonene.
Benzyl Salicylate
A fragrance ingredient and UV absorber, it is a known allergen and a suspected endocrine disruptor.
Limonene
A common citrus-derived fragrance component that can become allergenic upon oxidation when exposed to air.
Linalool
A floral-scented fragrance component that, like limonene, can oxidize and become allergenic.
Citrus Aurantium Peel Oil
An essential oil used for fragrance, it can be phototoxic and a skin sensitizer for some individuals.
Tetramethyl Acetyloctahydronaphthalenes
A synthetic musk fragrance ingredient, it is a potential sensitizer and has environmental concerns regarding persistence and bioaccumulation.
Sodium Benzoate
A widely used preservative that is generally safe, though sensitive individuals might experience irritation.
Helianthus Annus (Sunflower) Seed Oil
A nourishing emollient rich in fatty acids and vitamin E, providing moisturizing and antioxidant benefits.
Rosmarinus Officinalis (Rosemary) Leaf Extract
An antioxidant and anti-inflammatory ingredient known for its soothing and potential hair growth-stimulating properties.
Full ingredient 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
Chapter III · The Deep Dive
The K18 HeatBounce Conditioning Heat Protectant is a modern hair care product designed to shield hair from thermal damage while simultaneously repairing its structure. It combines high-tech peptide science with plant-based emollients to provide protection without the use of traditional silicones.
This product features a very clean and sophisticated formulation that avoids many controversial ingredients like silicones, parabens, and microplastics. While it contains some potential fragrance allergens and conditioning agents that require caution for very sensitive skin, the overall safety profile for both hair and skin is excellent.
| Inhaltsstoff | Bewertung | Funktion & Wirkung |
|---|---|---|
| Water (Aqua) | 🟢 | Solvent and base for the formulation. |
| sh-Oligopeptide-78 | 🟢 | Patented K18Peptide™; mimics hair's natural structure to repair broken keratin chains. |
| C13-15 alkane | 🟢 | A plant-derived silicone alternative (Hemisqualane) that provides shine and heat protection. |
| Behentrimonium Chloride | 🟡 | Conditioning agent; reduces static and detangles. Hinweis: Can be irritating to skin in high concentrations; toxic to aquatic life. |
| Laurdimonium Hydroxypropyl Hydrolyzed Barley Protein | 🟢 | Plant-based protein that strengthens the hair shaft and improves moisture retention. |
| Gluconolactone | 🟢 | A polyhydroxy acid (PHA) that conditions the hair and acts as a mild antioxidant. |
| Arginine | 🟢 | An essential amino acid that supports hair strength and scalp health. |
| Isopentyldiol / Propanediol | 🟢 | Humectants that improve moisture levels and enhance ingredient penetration. |
| Helianthus Annuus Seed Oil | 🟢 | Sunflower seed oil; provides Vitamin E and essential fatty acids for smoothness. |
| Benzyl Alcohol | 🟡 | Preservative and solvent. Hinweis: A known fragrance allergen that may irritate very sensitive skin. |
| Lactic Acid / Citric Acid | 🟢 | Natural AHAs used to stabilize the pH level of the product to match the hair's natural acidity. |
| Fragrance (Parfum) | 🟡 | Provides scent. Hinweis: Contains multiple potential allergens like Citronellol and Limonene. |
The formulation shows a conscious effort towards environmental responsibility by replacing persistent synthetics with biodegradable alternatives.
Fazit: This is a high-performance, scientifically advanced heat protectant that prioritizes hair health over temporary cosmetic fixes. By avoiding silicones and microplastics, it offers a sustainable yet effective solution for heat styling.
Empfehlung:
High Concern — Flagged Ingredients
Fragrance (Parfum)
A complex blend of aromatic substances that contains multiple known allergens like Citronellol and Limonene.
Benzyl Salicylate
A fragrance ingredient and UV absorber, it is a known allergen and a suspected endocrine disruptor.
Tetramethyl Acetyloctahydronaphthalenes
A synthetic musk fragrance ingredient, it is a potential sensitizer and has environmental concerns regarding persistence and bioaccumulation.
Chapter IV · The Verdict
K18 HeatBounce Conditioning Heat Protectant earns a 92/100 from our algorithm. An excellent formulation with well-chosen, effective ingredients.