Kérastase Genesis Bain Nutri-Fortifiant Shampoo dupe

L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo

−94%per oz

Kérastase · $48L'Oréal Paris · $9.47

Shared: Built on the same system from the same group: sodium laureth sulfate, cocamidopropyl betaine and salt with hexylene glycol, dimethicone, amodimethicone, carbomer, salicylic acid, a guar conditioner and trideceth-10.
The trade-off: Kérastase leaves out sodium lauryl sulfate and adds glycerin and mica, while L'Oréal keeps the second sulfate for more lather and thickens it with cocamide MEA.
Sizes: 251 ml against 828 ml

Genesis Bain Nutri-Fortifiant Shampoo costs about $48 for 251 ml ($5.66 / fl oz). The dupe below is L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo at $9.47, about 94% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Shampoo for thick, dry hair that breaks: sodium laureth sulfate and cocamidopropyl betaine with dimethicone, amodimethicone, a guar conditioner, glycerin and mica. From Kérastase's Genesis range for hair fall caused by breakage.

Amazon prices as of Sep 28, 2026, 1:12 AM ET, subject to change: the price on Amazon at checkout is the one that applies.

Buy the $9.47 dupe See the original

The dupe, side by side

The original

Kérastase

Genesis Bain Nutri-Fortifiant Shampoo

$48

$5.66 / fl oz

Cost per fl oz

Kérastase$5.66 / fl oz

L'Oréal Paris$0.34 / fl oz

$38.53 less at checkout than the original.

Size: Original · Kérastase251 ml; Dupe · L'Oréal Paris828 ml

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Questions

What is the best dupe for Kérastase Genesis Bain Nutri-Fortifiant Shampoo?

L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo at about $9.47. Built on the same system from the same group: sodium laureth sulfate, cocamidopropyl betaine and salt with hexylene glycol, dimethicone, amodimethicone, carbomer, salicylic acid, a guar conditioner and trideceth-10.

How much cheaper is L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo than Genesis Bain Nutri-Fortifiant Shampoo?

Genesis Bain Nutri-Fortifiant Shampoo costs about $48 for 251 ml, or $5.66 / fl oz. L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo works out at $0.34 / fl oz, roughly 94% less per ounce.

What does L'Oréal Paris Elvive Glycolic + Gloss Shine Boosting Shampoo do worse than Genesis Bain Nutri-Fortifiant Shampoo?

Kérastase leaves out sodium lauryl sulfate and adds glycerin and mica, while L'Oréal keeps the second sulfate for more lather and thickens it with cocamide MEA.