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Hair Treatment · Leave-In Treatment
Genesis Defense Thermique Blow Dry Primer
Kérastase
Read our Kérastase brand guide →Kerastase Genesis Defense Thermique Blow Dry Primer selected for Asian hair needs abroad.
Why Asian Stylists Recommend It
Dense Asian hair takes heavy heat to style, which damages color and structure; a blow-dry primer shields against that heat and cuts drying time, protecting thick, color-treated hair a bare blow-dry would fry.
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Best for
Thick, color-treated Asian hair that heat-styles regularly and needs heat protection.
Avoid if
Skip if you rarely heat-style or prefer air-dried, no-tool routines.
Why we recommend it
Genesis Defense Thermique is Kerastase's blow-dry primer — a leave-in you apply to damp hair before heat, and dense Asian hair takes a lot of heat to style, so real heat protection matters. It shields the strand against the dryer and iron, cuts breakage during blow-drying, and helps a smooth style set faster, which means less time under heat overall. On thick, often color-treated hair, that reduced heat load protects both tone and structure. Smooth it through damp mid-lengths and ends, then dry and style as usual. It primes and protects rather than finishing or holding — the first step before your dryer, not a shine oil or a hold product.
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