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How we build Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo

The original, what makes it special, the shelf parts we use and how to get closer. Add or swap parts and the score updates.

OLAPLEX

The original · Olaplex

Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo

$34 · 8.5 fl oz

A sulfate-free daily shampoo that cleans with mild coconut-derived surfactants.

Official product page (opens in new tab)

Prices and listings checked Oct 28, 2026. Amazon prices change; the link shows today's price.

Step 2 · The build

Our build 2 parts

  • Not Your Mother's

    Not Your Mother's Curl Talk Bond Building Hydrating Shampoo

    ACleansing system · 36BBond-building active · 5 of 18CHumectants · 11 of 12EConditioning polymers · 9 of 11FOils and butters · 8 of 11
    ~$8.79View product (opens in new tab)

    Not an affiliate link.

  • Not Your Mother's

    Not Your Mother's aura boost Restore Shampoo

    Adds: Humectants; Conditioning polymers

    ACleansing system · 36CHumectants · 12EConditioning polymers · 11FOils and butters · 6 of 11
    ~$8.99View product (opens in new tab)

    Not an affiliate link.

Partial credit means the part only partly matches that standout.

The 100 points

What stands out 100 pts

We split Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo into 6 standout parts. Each bar shows what the build earns.

  • ACleansing system36 of 36 pts

    The cleansing system sets how the shampoo lathers and how hard it washes. Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Disodium Cocoyl Glutamate do this job here.

    Gavazzoni 2015 · Int J Trichology
  • BBond-building active5 of 18 pts

    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.

    Di 2021 · Int J Biol Macromol
  • CHumectants12 of 12 pts

    Humectants (Glycereth-26, Glycerin, Panthenol) pull in water and keep the hair feeling soft.

  • DScalp actives0 of 12 pts

    Scalp-care ingredients (Biotin) are the reason to pick this over a plain wash.

  • EConditioning polymers11 of 11 pts

    Cationic conditioning polymers cling to wet hair and cut tangles. Amodimethicone, Polyquaternium-10, Polyquaternium-11 play that role here.

    da 2018 · J Cosmet Dermatol
  • FOils and butters8 of 11 pts

    Oils and butters (Helianthus Annuus Seed Oil, Prunus Armeniaca Kernel Oil, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate) soften the hair and seal in moisture.

Optional

Get closer score under 80

72 / 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

Buy the build

One link per part. Each opens the retailer in a new tab.

Skincare SuppliesOct 28, 2026

Your build

  1. 01Not Your Mother'sNot Your Mother's Curl Talk Bond Building Hydrating Shampoo~$8.79

    Running total ~$8.79

    View product (opens in new tab)

    Not an affiliate link.

  2. 02Not Your Mother'sNot Your Mother's aura boost Restore Shampoo~$8.99

    Running total ~$17.78

    View product (opens in new tab)

    Not an affiliate link.

Build total~$17.78
The splurge$34
Match72/100
You keep~$16.22

Snapshot prices. Each link shows today's price.

How to use

  1. Add Not Your Mother's aura boost Restore Shampoo: A mild sulfate-free cleanser with hydrolyzed lupine protein for damaged hair. Cleans comparably; no bond-linking active.

Other single-product swaps

One bottle instead of a build. Sorted by match score; scores use the same standouts as above.

budget Closest we found

Not Your Mother's Curl Talk Bond Building Hydrating Shampoo

Not Your Mother's

Match score 69 out of 100

No close match yet — we show the nearest formulas.

~$8.79 Price not confirmed · 8 fl ozSave ~$25.21
What it shares, what it misses

Shares

  • Sulfate-free amino acid and isethionate surfactants
  • Glycol distearate pearl
  • Conditioning polymers

Misses

  • Bis-aminopropyl diglycol dimaleate

Why it is close. Same kind of mild isethionate/sarcosinate cleanser, and NYM adds its own bond-builder complex. The Olaplex maleate is absent, so the repair claim is not equivalent.

Ingredient list source

View product (opens in new tab)

Not an affiliate link.

budget

Not Your Mother's aura boost Restore Shampoo

Not Your Mother's

Match score 65 out of 100
~$8.99 Price not confirmed · 13 fl ozSave ~$25.01
What it shares, what it misses

Shares

  • Sulfate-free isethionate cleanser
  • Conditioning polyquaternium-10

Misses

  • Bis-aminopropyl diglycol dimaleate

Why it is close. A mild sulfate-free cleanser with hydrolyzed lupine protein for damaged hair. Cleans comparably; no bond-linking active.

Ingredient list source

View product (opens in new tab)

Not an affiliate link.

What the science says

  • 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 Dermatol

  • Spectroscopy 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 Macromol

  • A dermatology review explains how shampoos and conditioners work and what they can and cannot do for hair.

    Gavazzoni 2015 · Int J Trichology

Full ingredient list

Show the INCI list

Water/Aqua/Eau, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Potassium Cocoyl Glycinate, Disodium Cocoyl Glutamate, Sodium Lauroyl Sarcosinate, Potassium Cocoate, Decyl Glucoside, Glycereth-26, Bis-Aminopropyl Diglycol Dimaleate, Cocamidopropylamine Oxide, Disodium Laureth Sulfosuccinate, Glycol Distearate, Sodium Cocoyl Glutamate, Methyl Gluceth-20, Acrylates Copolymer, PEG-120 Methyl Glucose Dioleate, Amodimethicone, Citric Acid, Sodium Lauryl Sulfoacetate, Polyquaternium-10, Ethylhexylglycerin, Divinyldimethicone/Dimethicone Copolymer, Polyquaternium-11, Trisodium Ethylenediamine Disuccinate, Guar Hydroxypropyltrimonium Chloride, C11-15 Alketh-7, Laureth-9, Glycerin, Trideceth-12, C12-13 Alketh-23, C12-13 Alketh-3, Panthenol, Acetic Acid, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Pentasodium Triphosphate, Glyoxal, Sodium Hydroxide, Helianthus Annuus (Sunflower) Seed Oil, Disodium EDTA, Tocopherol, Prunus Armeniaca (Apricot) Kernel Oil, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Quaternium-95, Propanediol, Helianthus Annuus (Sunflower) Seed Extract, PEG-8, Euterpe Oleracea Fruit Extract, Punica Granatum Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Musa Sapientum (Banana) Fruit Extract, Origanum Vulgare Leaf Extract, Morinda Citrifolia Fruit Extract, Arctium Lappa Root Extract, PEG-8/SMDI Copolymer, Sodium Hyaluronate, Palmitoyl Myristyl Serinate, Sodium Polyacrylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Biotin, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Potassium Sorbate, Sodium Benzoate, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral

Source

Questions

What does the 72/100 score for our Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo build mean?

We split Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo into 6 standout parts worth 100 points in total. The build earns 72 of a possible 89. 89 is the most we claim, because some standouts have no close retail equivalent.

What is the best dupe for Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo?

Not Your Mother's Curl Talk Bond Building Hydrating Shampoo by Not Your Mother's is our closest single-product match at 69 out of 100 for ~$8.79 (8 fl oz). It shares Sulfate-free amino acid and isethionate surfactants, Glycol distearate pearl, Conditioning polymers.

How much can I save on Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo?

Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo costs $34 for 8.5 fl oz. The closest dupe costs ~$8.79, a saving of about $25.21. Prices change, so check the seller page.

Is Not Your Mother's Curl Talk Bond Building Hydrating Shampoo exactly the same as Olaplex No.4 Bond Maintenance Strengthening, Hydrating Hair Repair Shampoo?

No. Dupes share the key actives but can differ in concentration, vehicle and supporting ingredients. Missing from this one: Bis-aminopropyl diglycol dimaleate. See our methodology for how we score.

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