Is K Resistance suitable for sensitive or dry scalp?

While the shampoo provides conditioning benefits from amodimethicone and polyquaternium-10 that can help smooth dry hair, the presence of sodium laureth sulfate and fragrance components such as limonene, linalool and citronellol may cause irritation on very sensitive scalps, so a patch test is advised.

What does salicylic acid do in the K Resistance formula?

Salicylic acid acts as a keratolytic agent that gently exfoliates the scalp, removing excess sebum and dead skin cells, which helps reduce buildup and supports a healthier environment for hair strength.

How often should K Resistance be used and does it contain any controversial chemicals?

The shampoo is intended for daily to every-other-day use depending on hair condition; it contains sodium laureth sulfate, a strong cleansing surfactant, and fragrance allergens such as limonene, linalool and citronellol, which some consumers consider controversial, so users with sensitivities should monitor their scalp response.

Kérastase • 250 ml

K Résistance

Hair

Product Insights

Kerastase K Resistance is a 250 ml fortifying shampoo designed to reinforce weak or damaged hair. The formula combines strengthening agents such as amodimethicone silicone, polyquaternium-10 conditioning polymer and salicylic acid for scalp health, delivering a smooth, resilient feel after use. However, it contains high-strength surfactants like sodium laureth sulfate, fragrance allergens (limonene, linalool, citronellol) and is classified as a NOVA 4 ultra-processed product, which may irritate sensitive scalps.

Comparative Analysis

Kerastase K Resistance occupies the premium salon-grade segment of fortifying shampoos, standing out with a silicone-based strengthening complex and salicylic-acid scalp treatment, positioning it against other high-end strengthening shampoos.

Ingredients

AQUA/WATER SODIUM LAURETH SULFATE COCO-BETAINE TAURINE COCAMIDE MIPA • SODIUM CHLORIDE • AMODIMETHICONE LAURETH-5 CARBOXYLIC ACID PPG-5-CETETH-20 • SODIUM BENZOATE POLYQUATERNIUM-10 • PEG-55 PROPYLENE GLYCOL OLEATE PROPYLENE GLYCOL PEG-60 HYDROGENATED CASTOR OIL SALICYLIC ACID AMYL CINNAMAL HEXYL CINNAMAL BENZYL ALCOHOL LINALOOL HYDROXYCITRONELLAL• CITRONELLOL LIMONENE CREATINE 2-OLEAMIDO-1,3-OCTADECANEDIOL • BENZYL CINNAMATE SODIUM ACETATE ISOPROPYL ALCOHOL • SODIUM HYDROXIDE • CITRIC ACID PARFUM / FRAGRANCE. C213767/1.

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35%

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