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How we build Olaplex No.5L Moisturize & Mend Leave-In Conditioner

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.5L Moisturize & Mend Leave-In Conditioner

$34 · 3.3 fl oz

A lotion-style leave-in with fatty alcohols, plant butters and squalane for slip and moisture, plus cationic conditioners that stay on the hair.

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 1 part

  • Not Your Mother's

    Not Your Mother's Curl Talk Leave-In Conditioner

    AConditioning base · 25CHumectants · 15EOils and butters · 11 of 14FProtein and amino acids · 7 of 10
    ~$8.79View 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.5L Moisturize & Mend Leave-In Conditioner into 6 standout parts. Each bar shows what the build earns.

  • AConditioning base25 of 25 pts

    The conditioning base (Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Alcohol) is what coats and detangles the hair after the rinse. A shelf formula with the same kind of base does the same job.

  • BBond-building active0 of 21 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.

  • CHumectants15 of 15 pts

    Humectants (Propanediol, Glycerin, Pentylene Glycol) pull in water and keep the hair feeling soft.

  • DStyling film-formers0 of 15 pts

    Film-formers and polymers (Brassica Campestris/Aleurites Fordi Oil Copolymer, Xanthan Gum) give hold, set and heat or humidity resistance.

  • EOils and butters11 of 14 pts

    Oils and butters (Astrocaryum Murumuru Seed Butter, Squalane, Brassica Campestris/Aleurites Fordi Oil Copolymer) soften the hair and seal in moisture.

  • FProtein and amino acids7 of 10 pts

    Hydrolyzed proteins and amino acids (Arginine, Aspartic Acid, Glycine) are added to coat and temporarily fill rough spots on the hair surface.

Optional

Get closer score under 80

58 / 100. We have not found a shelf product that closes more of the gap yet.

87 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 Leave-In Conditioner~$8.79

    Not an affiliate link.

Build total~$8.79
The splurge$34
Match58/100

Snapshot prices. Each link shows today's price.

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 Leave-In Conditioner

Not Your Mother's

Match score 58 out of 100

No close match yet — we show the nearest formulas.

~$8.79 Price not confirmed · 6 fl oz
What it shares, what it misses

Shares

  • Leave-in cationic cream (behentrimonium chloride)
  • Glycerin
  • Marula/avocado oils

Misses

  • Bis-aminopropyl diglycol dimaleate
  • Squalane and murumuru butter

Why it is close. Same rinse-free conditioner idea. NYM adds quats and plant oils.

Ingredient list source

View product (opens in new tab)

Not an affiliate link.

budget

Not Your Mother's Way to Grow Leave-In Conditioner

Not Your Mother's

Match score 49 out of 100
~$8.49 Price not confirmed · 6 oz
What it shares, what it misses

Shares

  • Behentrimonium chloride + cetearyl alcohol

Misses

  • Maleate
  • Butter and squalane

Why it is close. Ulta-only growth-marketed leave-in; weak match.

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
  • A combing test found bleaching raises hair breakage and that nearly all anti-breakage products on the market pair silicones with cationic polymers.

    Haake 2009 · J Cosmet Sci
  • In a controlled comparison, coconut oil reduced protein loss from damaged and undamaged hair when used before or after washing; sunflower and mineral oil did not. This applies to coconut oil itself, not to a blend that contains some.

    Rele 2003 · J Cosmet Sci
  • 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

Full ingredient list

Show the INCI list

Water/Aqua/Eau, Cetearyl Alcohol, Astrocaryum Murumuru Seed Butter, Propanediol, Behentrimonium Chloride, Glycerin, Cetyl Alcohol, Isoamyl Laurate, Squalane, Bis-Aminopropyl Diglycol Dimaleate, Brassicyl Valinate Esylate, Cetyl Esters, Pentylene Glycol, Phenethyl Benzoate, Brassica Campestris/Aleurites Fordi Oil Copolymer, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Caprylic/Capric Triglyceride, Cetrimonium Chloride, Caesalpinia Spinosa Gum, Fructooligosaccharides, Beta Vulgaris (Beet) Root Extract, Sodium PCA, Hydroxypropyl Starch Phosphate, Guar Hydroxypropyltrimonium Chloride, Sodium Lactate, Hydrogenated Ethylhexyl Olivate, Calcium Gluconate, Argania Spinosa Kernel Oil, Caprylyl Glycol, Cocos Nucifera (Coconut) Oil, Panthenol, Arginine, Ethylhexylglycerin, Oryza Sativa (Rice) Bran Extract, Sodium Phytate, Aspartic Acid, Potassium Lactate, Ximenia Americana Seed Oil, PCA, Hydrogenated Olive Oil Unsaponifiables, Butylene Glycol, Lactic Acid, Raphanus Sativus (Radish) Seed Extract, Octyldodecyl Oleate, Octyldodecanol, Helianthus Annuus (Sunflower) Extract, Propylene Glycol, Glycine, Citric Acid, Alanine, Algin, Coco-Glucoside, Sorbitan Oleate, Serine, Tocopherol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Valine, Carrageenan, Chitosan, Xanthan Gum, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Magnolia Officinalis Bark Extract, Betula Alba Bark Extract, Crambe Maritima Extract, Ulmus Fulva Bark Extract, Caesalpinia Spinosa Fruit Extract, Sodium Hyaluronate, Hydrolyzed Ceratonia Siliqua Seed Extract, Zea Mays (Corn) Starch, Helianthus Annuus (Sunflower) Sprout Extract, Polyquaternium-7, Sodium Hydroxide, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral, Linalool, Citronellol

Source

Questions

What does the 58/100 score for our Olaplex No.5L Moisturize & Mend Leave-In Conditioner build mean?

We split Olaplex No.5L Moisturize & Mend Leave-In Conditioner into 6 standout parts worth 100 points in total. The build earns 58 of a possible 87. 87 is the most we claim, because some standouts have no close retail equivalent.

What is the best dupe for Olaplex No.5L Moisturize & Mend Leave-In Conditioner?

Not Your Mother's Curl Talk Leave-In Conditioner by Not Your Mother's is our closest single-product match at 58 out of 100 for ~$8.79 (6 fl oz). It shares Leave-in cationic cream (behentrimonium chloride), Glycerin, Marula/avocado oils.

How much can I save on Olaplex No.5L Moisturize & Mend Leave-In Conditioner?

Olaplex No.5L Moisturize & Mend Leave-In Conditioner costs $34 for 3.3 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 Leave-In Conditioner exactly the same as Olaplex No.5L Moisturize & Mend Leave-In Conditioner?

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

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