Olaplex No.5 Bond Maintenance Conditioner
Olaplex Nº.9 Bond Protector Nourishing Hair Serum
Versus

Olaplex No.5 Bond Maintenance Conditioner Versus Olaplex Nº.9 Bond Protector Nourishing Hair Serum

Conditioner
Hair Serum
American Brand United States
American Brand United States

Updated on May 21, 2025

Overview

What they are

These products are both vegan, cruelty-free, and reef safe . They have a total of 0 ingredients in common

Cool Features

They both contain hyaluronic acid

Suited For

They're both likely to be good for dry skin, sensitive skin, scar healing and dark spots

Free From

They both do not contain any harsh alcohols, parabens or sulfates

What's Inside

They both contain common allergens and fragrances

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

New Comparison

Ingredient Info

Click any item below to learn more and see relevant ingredients

Olaplex No.5 Bond Maintenance Conditioner 75 ingredients

Olaplex Nº.9 Bond Protector Nourishing Hair Serum 31 ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Olaplex No.5 Bond Maintenance Conditioner 75 ingredients

Olaplex Nº.9 Bond Protector Nourishing Hair Serum 31 ingredients

Key Ingredients

Benefits

Concerns

Benefits

Concerns

Ingredients Side-by-side

found in both products
No.5 Bond Maintenance Conditioner

Water

Skin Conditioning

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

PPG-3 Benzyl Ether Myristate

Emollient

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Cetyl Alcohol

Emollient
2 / 2 Fatty Alcohol Icon

Octyldodecyl Ricinoleate

Emollient

Quaternium-91

Divinyldimethicone/Dimethicone Copolymer

Cetrimonium Chloride

Antimicrobial
Preservative Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Isododecane

Emollient

Cetyl Esters

Emollient
1 / 1 Not safe for Fungal Acne Icon

Behentrimonium Chloride

Preservative
Preservative Icon

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Phenoxyethanol

Preservative
Preservative Icon

Phospholipids

Skin Conditioning
Helps hydrate Dry Skin Icon

Hydroxypropyl Guar

Emulsion Stabilising

Dimethicone PEG-7 Isostearate

Emollient

Glycine Soja Oil

Emollient
3 / 0 Oil IconHelps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

PEG-7 Amodimethicone

Humectant
Silicon Icon

PEG-45m

Humectant

Amodimethicone

Silicon Icon

Disodium EDTA

Polysilicone-15

UV Filter

Camellia Sinensis Seed Oil

Humectant
Oil IconHelps hydrate Dry Skin IconHelps reduce irritation IconNot safe for Fungal Acne Icon

C11-15 Pareth-7

Emulsifying

Sodium Polyacrylate

Absorbent
Helps hydrate Dry Skin Icon

C12-13 Pareth-3

Emulsifying

C12-13 Pareth-23

Cleansing

Vitis Vinifera

Masking
Not safe for Fungal Acne Icon

Vitis Vinifera Seed Oil

Emollient
2-3 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Persea Gratissima Oil

Skin Conditioning
0-3 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Crambe Abyssinica Seed Oil

Skin Conditioning
Oil IconNot safe for Fungal Acne Icon

Laureth-9

Emulsifying

Trideceth-12

Emulsifying

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Ahnfeltiopsis Concinna Extract

Skin Conditioning
Helps reduce irritation Icon

Iodopropynyl Butylcarbamate

Preservative
Preservative Icon

Acetic Acid

Buffering

Sodium Acetate

Buffering

Tocopheryl Linoleate/Oleate

Antioxidant
Antioxidant Icon

Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate

Humectant
Oil IconNot safe for Fungal Acne Icon

Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate

Skin Conditioning
Oil Icon

Hydrolyzed Hyaluronic Acid

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Quaternium-95

UV Absorber

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Helianthus Annuus Seed Extract

Skin Conditioning
Helps hydrate Dry Skin Icon

PEG-8

Humectant

Bis-Aminopropyl Diglycol Dimaleate

Skin Conditioning

Punica Granatum Extract

Astringent

Morinda Citrifolia Fruit Extract

Skin Conditioning

PEG-8/Smdi Copolymer

Euterpe Oleracea Fruit Extract

Helps reduce irritation Icon

Palmitoyl Myristyl Serinate

Skin Conditioning

BHT

Antioxidant
Antioxidant Icon

Silica

Abrasive
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Sodium Benzoate

Masking
Preservative Icon

Potassium Sorbate

Preservative
Preservative Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Antioxidant
Antioxidant Icon

Biotin

Antiseborrhoeic

Citral

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Rosacea Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Hydroxypropyl Cyclodextrin

Masking

Chlorphenesin

Antimicrobial
Preservative Icon

Propylene Glycol

Humectant
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Sodium Dehydroacetate

Preservative
Preservative Icon

PEG-4 Laurate

Emulsifying
Not safe for Fungal Acne Icon

PEG-4 Dilaurate

Emulsifying
Not safe for Fungal Acne Icon

PEG-4

Humectant

Etidronic Acid

Water, Cetearyl Alcohol, PPG-3 Benzyl Ether Myristate, Caprylic/Capric Triglyceride, Cetyl Alcohol, Octyldodecyl Ricinoleate, Quaternium-91, Divinyldimethicone/Dimethicone Copolymer, Cetrimonium Chloride, Glycerin, Isododecane, Cetyl Esters, Behentrimonium Chloride, Panthenol, Parfum, Phenoxyethanol, Phospholipids, Hydroxypropyl Guar, Dimethicone PEG-7 Isostearate, Glycine Soja Oil, PEG-7 Amodimethicone, PEG-45m, Amodimethicone, Disodium EDTA, Polysilicone-15, Camellia Sinensis Seed Oil, C11-15 Pareth-7, Sodium Polyacrylate, C12-13 Pareth-3, C12-13 Pareth-23, Vitis Vinifera, Vitis Vinifera Seed Oil, Persea Gratissima Oil, Crambe Abyssinica Seed Oil, Laureth-9, Trideceth-12, Butylene Glycol, Citric Acid, Ahnfeltiopsis Concinna Extract, Iodopropynyl Butylcarbamate, Acetic Acid, Sodium Acetate, Tocopheryl Linoleate/Oleate, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate, Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate, Hydrolyzed Hyaluronic Acid, Helianthus Annuus Seed Oil, Quaternium-95, Propanediol, Helianthus Annuus Seed Extract, PEG-8, Bis-Aminopropyl Diglycol Dimaleate, Punica Granatum Extract, Morinda Citrifolia Fruit Extract, PEG-8/Smdi Copolymer, Euterpe Oleracea Fruit Extract, Palmitoyl Myristyl Serinate, BHT, Silica, Sodium Benzoate, Potassium Sorbate, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Biotin, Citral, Hexyl Cinnamal, Limonene, Hydroxypropyl Cyclodextrin, Chlorphenesin, Propylene Glycol, Sodium Dehydroacetate, PEG-4 Laurate, PEG-4 Dilaurate, PEG-4, Etidronic Acid

Nº.9 Bond Protector Nourishing Hair Serum

Water

Skin Conditioning

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Betaine

Humectant
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots Icon

Quaternium-22

Bis-Aminopropyl Diglycol Dimaleate

Skin Conditioning

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

Cetrimonium Chloride

Antimicrobial
Preservative Icon

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Hydroxyethylcellulose

Emulsion Stabilising

Pvp

Emulsion Stabilising
0 / 0

Guar Hydroxypropyltrimonium Chloride

Skin Conditioning

Furcellaria Lumbricalis Extract

Skin Conditioning

Pelvetia Canaliculata Extract

Skin Protecting

Xylitylglucoside

Humectant
Helps hydrate Dry Skin Icon

Polyquaternium-44

Anhydroxylitol

Humectant
Helps hydrate Dry Skin Icon

Maltitol

Humectant

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Trisodium Ethylenediamine Disuccinate

Xylitol

Humectant
Helps hydrate Dry Skin Icon

Ethylhexylglycerin

Skin Conditioning

Sodium Hydroxide

Buffering

Sorbic Acid

Preservative
Preservative Icon

Phenoxyethanol

Preservative
Preservative Icon

Sodium Benzoate

Masking
Preservative Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Citral

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Rosacea Icon

Citronellol

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Linalool

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Water, Propanediol, Betaine, Quaternium-22, Bis-Aminopropyl Diglycol Dimaleate, Sodium Hyaluronate, Cetrimonium Chloride, Panthenol, Hydroxyethylcellulose, Pvp, Guar Hydroxypropyltrimonium Chloride, Furcellaria Lumbricalis Extract, Pelvetia Canaliculata Extract, Xylitylglucoside, Polyquaternium-44, Anhydroxylitol, Maltitol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xylitol, Ethylhexylglycerin, Sodium Hydroxide, Sorbic Acid, Phenoxyethanol, Sodium Benzoate, Parfum, Citral, Citronellol, Hexyl Cinnamal, Limonene, Linalool

Ingredient Ratings

Here's what our community thinks of the ingredients in these products.

No.5 Bond Maintenance Conditioner
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium
Nº.9 Bond Protector Nourishing Hair Serum
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium

When to use

Olaplex No.5 Bond Maintenance Conditioner 75 ingredients

Olaplex Nº.9 Bond Protector Nourishing Hair Serum 31 ingredients

37 Routines
38% use in am
62% use in pm
62% use every day
When to use See routines that use it ->
17 Routines
41% use in am
59% use in pm
59% use every day

Reviews

Here's what our community thinks

Olaplex No.5 Bond Maintenance Conditioner 75 ingredients

4.00
Overall rating
5
4
3
2
1
What people say
Straight Hair 100% Color Care 50%

Olaplex Nº.9 Bond Protector Nourishing Hair Serum 31 ingredients

3.67
Overall rating
5
4
3
2
1
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