OLAPLEX No.4P Blonde Enhancer Toning Shampoo

L'Oréal Paris EverPure Brass Toning Purple Shampoo

−63%per oz

OLAPLEX · $34L'Oréal Paris · $9.97

Shared: Same job: a sulfate-free purple shampoo whose violet dye cancels the yellow and orange in blonde, grey and lightened hair.
The trade-off: Olaplex adds its patented bis-aminopropyl diglycol dimaleate and cleans with an olefin sulfonate, while L'Oréal uses isethionate and sulfosuccinate cleansers plus amodimethicone for slip, with no bond builder.
Sizes: 250 ml against 200 ml

OLAPLEX No.4P Blonde Enhancer Toning Shampoo dupe

No.4P Blonde Enhancer Toning Shampoo costs about $34 for 250 ml ($4.02 / fl oz). The closest match below is L'Oréal Paris EverPure Brass Toning Purple Shampoo at $9.97, about 63% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Sulfate-free purple shampoo for blonde, grey and lightened hair: a violet dye cancels yellow and brassy tones, and Olaplex's bond builder works on the hair while it does.

Original: $34
Cheapest dupe: $9.97
You save: 63%

Amazon prices as of Sep 25, 2026, 7:41 PM ET, subject to change: the price on Amazon at checkout is the one that applies.

Buy the $9.97 dupe See the original

The dupe, side by side

The original

OLAPLEX

No.4P Blonde Enhancer Toning Shampoo

$34

$4.02 / fl oz

−63%per oz

Cost per fl oz

OLAPLEX$4.02 / fl oz

L'Oréal Paris$1.47 / fl oz

$24.03 less at checkout than the original.

Size: Original · OLAPLEX250 ml; Dupe · L'Oréal Paris200 ml
Key ingredients: Original · OLAPLEXBis-aminopropyl diglycol dimaleate, Acid Violet 43; Dupe · L'Oréal ParisAmodimethicone, Polyquaternium-10

What matches

Same job: a sulfate-free purple shampoo whose violet dye cancels the yellow and orange in blonde, grey and lightened hair.

What the dupe does worse

Olaplex adds its patented bis-aminopropyl diglycol dimaleate and cleans with an olefin sulfonate, while L'Oréal uses isethionate and sulfosuccinate cleansers plus amodimethicone for slip, with no bond builder.

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Questions

What is the best dupe for OLAPLEX No.4P Blonde Enhancer Toning Shampoo?

L'Oréal Paris EverPure Brass Toning Purple Shampoo at about $9.97. Same job: a sulfate-free purple shampoo whose violet dye cancels the yellow and orange in blonde, grey and lightened hair.

How much cheaper is L'Oréal Paris EverPure Brass Toning Purple Shampoo than No.4P Blonde Enhancer Toning Shampoo?

No.4P Blonde Enhancer Toning Shampoo costs about $34 for 250 ml, or $4.02 / fl oz. L'Oréal Paris EverPure Brass Toning Purple Shampoo works out at $1.47 / fl oz, roughly 63% less per ounce.

What does L'Oréal Paris EverPure Brass Toning Purple Shampoo do worse than No.4P Blonde Enhancer Toning Shampoo?