Prime Big Deal Days Oct 6–7. SHOP THE DEALS ▸

KérastaseResistance Heat Protecting Styling Serum

Hair serum

$52

Size 151 ml, $10.18 / fl oz

Sold by Kérastase. Amazon's shipping and returns apply. Who sells Kérastase on Amazon

Amazon price as of Oct 5, 2026, 2:00 AM ET, subject to change: the price on Amazon at checkout is the one that applies. We may earn a commission; the price you pay is the same.

Color Wow Curl Wow Flo-etry
9 cheaper on the same shelf, from $3 / fl oz. See them

No dupe for this one yet

Want one? Ask, and it moves up our list. A pair only goes up when the cheaper product matches on format, finish or key actives and Amazon.com or its maker sells it.

About the Product

What it is: Hair serum, 151 ml. Blow dry primer. Protects against heat and offers heat protection from styling tools with 450 degrees Fahrenheit thermo-protection. Reduces breakage and seals moisture while rebuilding hair texture.

What Else You Need to Know:

  • Benefits: Strengthens and restores damaged, brittle hair by promoting elasticity and moisture retention to strengthen hair and enhance shine. Formulated with resurrection plant sap to intensely hydrate dry hair.
  • Additional benefits: Protects weak hair from heat to maintain healthy, beautiful hair and help control flyaways. Can be layered with other Kerastase hair products.
  • Suggested use: Apply a quarter size amount of Ciment Thermique blow dry primer to clean towel-dried hair. Massage onto lengths and ends, but do not rinse. Blow dry, then heat style as usual to achieve desired look.

From the Amazon listing.

Hair dupe guides

Cheaper on the Same Shelf

Hair serum, for less per ounce on Amazon

$52

$10.18 / fl oz