The original, what makes it special, the shelf parts we use and how to get closer. Add or swap parts and the score updates.
The original · Olaplex
$34 · 8.5 fl oz
A purple-pigmented shampoo that deposits a violet dye to cancel yellow tones in blonde, bleached or gray hair.
Prices and listings checked Oct 28, 2026. Amazon prices change; the link shows today's price.
Step 2 · The build
Not Your Mother's
Partial credit means the part only partly matches that standout.
The 100 points
We split Olaplex No.4P Hair Brightening & Toning Purple Shampoo into 5 standout parts. Each bar shows what the build earns.
The cleansing system sets how the shampoo lathers and how hard it washes. Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Cocoamphoacetate do this job here.
Violet and blue pigments (Acid Violet 43) offset brassy yellow tones on lightened hair.
The brand's bond-building active (Bis-Aminopropyl Diglycol Dimaleate) is the headline claim. No shelf product in our lines contains it.
No close retail equivalent: we credit at most 40% of these points.
Humectants (Glycerin, Betaine) pull in water and keep the hair feeling soft.
Cationic conditioning polymers cling to wet hair and cut tangles. Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride play that role here.
Optional
50 / 100. We have not found a shelf product that closes more of the gap yet.
89 is our ceiling. Bond-building active has no close retail equivalent, so we cap it at 40% credit.
Step 3 · Buy
One link per part. Each opens the retailer in a new tab.
Your build
Running total ~$8.99
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Snapshot prices. Each link shows today's price.
One bottle instead of a build. Sorted by match score; scores use the same standouts as above.
Not Your Mother's
No close match yet — we show the nearest formulas.
Why it is close. Both are purple shampoos for blonde hair. Ulta-only; INCI shows itaconic acid and arginine, not Olaplex's bond chemistry. We could not compare the purple dye level.
Not an affiliate link.
Not Your Mother's
Running total
View product (opens in new tab)Not an affiliate link.
Not Your Mother's
In a lab test on hair colored with oxidative dye, adding conditioning agents (a silane/panthenol blend, PEG-12 dimethicone, or hydrolyzed silk and milk protein) cut protein loss and combing damage compared with dye alone.
da 2018 · J Cosmet DermatolSpectroscopy on bleached hair treated with maleate-based repair agents saw the agents interact with the hair and give a more regular surface, but found no sign of new disulfide bonds. The test did not use this product.
Di 2021 · Int J Biol MacromolA dermatology review explains how shampoos and conditioners work and what they can and cannot do for hair.
Gavazzoni 2015 · Int J TrichologyWater/Aqua/Eau, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Sodium Chloride, Sodium Cocoamphoacetate, Bis-Aminopropyl Diglycol Dimaleate, Betaine, Acrylates Copolymer, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Citric Acid, Ethylhexylglycerin, Phenoxyethanol, Sodium Benzoate, Fragrance (Parfum), Limonene, Hexyl Cinnamal, Acid Violet 43 (CI 60730)
We split Olaplex No.4P Hair Brightening & Toning Purple Shampoo into 5 standout parts worth 100 points in total. The build earns 50 of a possible 89. 89 is the most we claim, because some standouts have no close retail equivalent.
Not Your Mother's Blonde Moment Tone & Repair Purple Shampoo by Not Your Mother's is our closest single-product match at 50 out of 100 for ~$8.99 (8 oz). It shares Purple-toned shampoo, Sulfate-free mild surfactants.
Olaplex No.4P Hair Brightening & Toning Purple Shampoo costs $34 for 8.5 fl oz. The closest dupe costs ~$8.99, a saving of about $25.01. Prices change, so check the seller page.
No. Dupes share the key actives but can differ in concentration, vehicle and supporting ingredients. Missing from this one: Olaplex olefin sulfonate base. See our methodology for how we score.
Olaplex · bond-repair
$10.99our build, 1 partOriginal $34, build $10.99.
Not Your Mother's
Olaplex · conditioner
~$18.78our build, 2 partsOriginal $34, build ~$18.78.
Neutrogena + Not Your Mother's
Olaplex · dry-shampoo
~$17.98our build, 2 partsOriginal $30, build ~$17.98.
Not Your Mother's