KÉRASTASE Heat Protecting Spray for Fine to Medium Dry Hair — 5.1 fl oz, Lightweight Thermal Protection to 450°F

KÉRASTASE Nutritive Heat Protecting Spray is a lightweight, leave-in mist that safeguards fine to medium dry hair from heat up to 450°F while smoothing, detangling, and boosting shine.

Designed as part of the Nutritive collection, this lotion-style thermal spray blends plant-derived proteins with niacinamide to replenish moisture, strengthen fragile strands, and tame frizz without weighing hair down. Use it after washing on towel-dried lengths and ends to simplify styling and reduce breakage caused by hot tools or daily friction.

How does this spray protect hair during heat styling?

The spray forms a light, protective layer along the hair shaft that helps shield strands from temperatures up to 450°F. That barrier reduces the mechanical stress and moisture loss caused by blow-dryers, flat irons, and curling tools, helping hair stay smoother and less prone to split ends.

• Thermal protection rated up to 450°F for styling tools
• Lightweight leave-in mist avoids product buildup
• Helps reduce styling-related breakage and dryness

Will it make my dry, fine hair feel heavy or greasy?

No — the formula is specifically balanced for fine to medium dry hair, offering nourishment without excessive weight. Plant-based proteins and niacinamide work to retain hydration and fortify strands while maintaining natural movement and bounce.

• Fine-to-medium formulation prevents heaviness
• Quick-absorbing texture for soft, non-greasy finish
• Adds shine without sacrificing volume

How does this product help with detangling and frizz control?

The spray smooths the hair surface to reduce friction between strands, making wet combing easier and minimizing knotting. At the same time it calms flyaways and frizz for a sleeker appearance whether you air-dry or heat-style.

• Improves comb-through on towel-dried hair
• Reduces flyaways for a polished look
• Enhances softness and manageability for styling

How do I use it for best results?

Apply to clean, towel-dried hair after shampoo and conditioner. Dispense a small, lotion-like amount across lengths and ends — there is no need to rinse. You can then blow-dry, air-dry, or proceed with heat tools as usual.

• Use on towel-dried hair after washing and conditioning
• Massage through lengths and ends; do not rinse out
• Suitable before blow-drying or heat-styling routines

Who is this for: KÉRASTASE Nutritive Heat Protecting Spray is aimed at people with fine to medium hair that tends to be dry, fragile, or prone to frizz. It suits anyone who wants a lightweight, leave-in thermal barrier that detangles, improves shine, and helps protect hair from the effects of daily heat styling without compromising volume.

Ingredients

Aqua / Water / Eau, Niacinamide, Polyquaternium-37, Propylene Glycol Dicaprylate/Dicaprate, Citric Acid, Polysorbate 20, Quaternium-87, Stearyl Alcohol, Glycine Soja Oil / Soybean Oil, Sodium Benzoate, Caprylyl Glycol, Behentrimonium Chloride, Ppg-1 Trideceth-6, Panthenol, Ascorbyl Glucoside, Butylene Glycol, Candelilla Cera / Candelilla Wax / Cire De Candelilla, Propylene Glycol, Linalool, Hydroxycitronellal, Isopropyl Alcohol, Sorbitan Oleate, Benzyl Salicylate, Benzyl Alcohol, Hexyl Cinnamal, Polyquaternium-11, Citronellol, Hydrolyzed Wheat Protein, Alpha-Isomethyl Ionone, Coumarin, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Limonene, Iris Florentina Root Extract, Phenoxyethanol, Parfum / Fragrance.