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    Kérastase

    Kérastase Résistance Extentioniste Thermique Heat Protectant

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    Strengthening heat protectant for long, fragile hair — reduces breakage and shields to 230°C.

    Salon range
    €40.65150ml · €27.10/100 ml · incl. VAT
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    In stock · In stock · dispatched in 1–2 working days

    • Glutamic AcidAn amino acid that reinforces the hair fibre from within, reducing breakage and supporting length retention for longer hair.
    • Heat-Protective PolymersShield fragile, long hair from heat damage caused by blow-drying and styling tools.
    • Conditioning AgentsSmooth the cuticle and add shine for a polished finish.

    Apply to towel-dried hair from roots to ends. Comb through to distribute evenly. Do not rinse. Blow-dry or heat style as usual.

    A strengthening heat protectant from the Kérastase Résistance Extentioniste range, designed for long, damaged, or fragile hair. Applied before blow-drying or heat styling, it protects against heat damage up to 230°C while delivering fibre-strengthening technology from root to tip — ideal for those growing their hair longer.

    Key Benefits:

    • Heat protection up to 230°C for long, fragile hair
    • Strengthens the hair fibre to reduce breakage during styling
    • Supports healthy length retention
    • Smooths and adds shine during blow-drying

    Questions

    Strengthening heat protectant for long, fragile hair — reduces breakage and shields to 230°C. The work is done by amino acids.

    Apply to towel-dried hair from roots to ends. Comb through to distribute evenly. Do not rinse. Blow-dry or heat style as usual.

    The key active is amino acids — chosen for exactly what this hair treatment promises: strengthening heat protectant for long, fragile hair — reduces breakage and shields to 230°C.

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