Redken Extreme Length Shampoo dupe

L'Oréal Paris Elvive Dream Lengths Restoring Shampoo

−80%per oz

Redken · $58L'Oréal Paris · $9.47

Shared: Same base, from the same parent company: sodium laureth sulfate with cocamidopropyl betaine and salt, a classic lathering shampoo for long hair that splits at the ends.
The trade-off: Redken adds biotin and a ceramide, while L'Oréal adds castor oil, niacinamide and dimethicone, which leaves more slip on the lengths.
Sizes: 1000 ml against 828 ml

Extreme Length Shampoo costs about $58 for 1000 ml ($1.72 / fl oz). The dupe below is L'Oréal Paris Elvive Dream Lengths Restoring Shampoo at $9.47, about 80% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Shampoo with biotin for hair being grown long, on a sodium laureth sulfate and cocamidopropyl betaine base that cleans thoroughly. The one-liter salon bottle.

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.

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The dupe, side by side

The original

Redken

Extreme Length Shampoo

$58

$1.72 / fl oz

Cost per fl oz

Redken$1.72 / fl oz

L'Oréal Paris$0.34 / fl oz

$48.53 less at checkout than the original.

Size: Original · Redken1000 ml; Dupe · L'Oréal Paris828 ml
Key ingredients: Original · RedkenBiotin; Dupe · L'Oréal ParisCastor oil, Niacinamide

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L'Oréal Paris Elvive Dream Lengths Restoring Shampoo: 8 of the first 10 ingredients are the same. Both ingredient lists, side by side

Questions

What is the best dupe for Redken Extreme Length Shampoo?

L'Oréal Paris Elvive Dream Lengths Restoring Shampoo at about $9.47. Same base, from the same parent company: sodium laureth sulfate with cocamidopropyl betaine and salt, a classic lathering shampoo for long hair that splits at the ends.

How much cheaper is L'Oréal Paris Elvive Dream Lengths Restoring Shampoo than Extreme Length Shampoo?

Extreme Length Shampoo costs about $58 for 1000 ml, or $1.72 / fl oz. L'Oréal Paris Elvive Dream Lengths Restoring Shampoo works out at $0.34 / fl oz, roughly 80% less per ounce.

What does L'Oréal Paris Elvive Dream Lengths Restoring Shampoo do worse than Extreme Length Shampoo?

Redken adds biotin and a ceramide, while L'Oréal adds castor oil, niacinamide and dimethicone, which leaves more slip on the lengths.

Ranked in this guide: Shampoo, conditioner and styling dupes

$9.47

L'Oréal Paris · 80% less

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