No.4 Fine Bond Maintenance Shampoo

Olaplex

No.4 Fine Bond Maintenance Shampoo

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About this product

The Olaplex No.4 Fine Bond Maintenance Shampoo is a misc. Our analysis of its 52 ingredients (38 low-risk) rates it Excellent (95/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
52
Low-risk
38
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 6/13
Good for dry skin
Sodium Hyaluronate Glycerin Propylene Glycol Coconut Acid Polyglyceryl-4 Caprate Polyglyceryl-6 Caprylate
Caution for dry skin
Lauryl Glucoside Sodium Cocoyl Alaninate Sodium Cocoyl Isethionate Xanthan Gum Glycerin Coco-glucoside Coconut Acid Polyglyceryl-4 Caprate Polyglyceryl-6 Caprylate Polyquaternium-80 Acrylates Copolymer Cetrimonium Chloride Sodium Hydroxide
Oily/Acne-Prone Skin No data
Sensitive Skin 1/12
Good for sensitive skin
Glycerin
Caution for sensitive skin
Sodium Chloride Algin Glycerin Propylene Glycol Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Benzyl Alcohol Hexyl Cinnamal Limonene Citral

Ingredients list

52 total
Lower hazard (1) Higher hazard (7)
All52 Skin Conditioning26 Fragrance13 Hair Conditioning9 Viscosity Controlling9 Surfactant8 Masking7 Film Forming7 Solvent7
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
B
Sodium Cocoyl Alaninate
(Hair Conditioning, Surfactant)
1
B
Sodium Cocoyl Isethionate
(Cleansing, Hair Conditioning, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Coco-glucoside
(Cleansing, Foaming, Surfactant)
1
B
Lauryl Glucoside
(Cleansing, Surfactant)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Cocamidopropyl Hydroxysultaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent, Viscosity Controlling)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
2
B
Acrylates Copolymer
(Adhesive, Artificial Nail Builder, Binding Agent, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding)
1
Polyquaternium-80
(Cleansing, Emulsifying, Hair Conditioning)
Bis-Aminopropyl Diglycol Dimaleate
(Hair Conditioning, Hair Waving Or Straightening, Skin Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
PARFUM
(Fragrance, Perfuming)
1
A
Coconut Acid
(Cleansing, Emollient, Emulsifying, Surfactant)
1
Cocamide MIPA
(Foam Boosting, Viscosity Increasing Agent, Emulsifying, Emulsion Stabilising, Viscosity Controlling)
1
A
Guar Hydroxypropyltrimonium Chloride
(Antistatic Agent, Hair Conditioning, Viscosity Increasing Agent, Film Forming, Skin Conditioning, Viscosity Controlling)
1
B
Polyglyceryl-4 Caprate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
B
Polyglyceryl-6 Caprylate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
Polyimide-1
(Film Forming, Hair Fixing)
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
3
A
Polyquaternium-7
(Antistatic Agent, Film Forming, Hair Fixing)
3
B
Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
Oryza Sativa Bran Extract
(Skin Conditioning, Skin Protecting)
1
Hydrolyzed Quinoa
(Skin Conditioning)
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
1
Sarcosine
(Skin Conditioning)
Pisum Sativum Seed Extract
(Skin Conditioning)
Helianthus Annuus Extract
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling)
1
A
1,2-Hexanediol
(Solvent)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
A
Algin
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling)
Bad for Sensitive Skin
Bad for Sensitive Skin
Bad for Oily Skin
Bad for Oily Skin
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
Tetrasodium Glutamate Diacetate
(Chelating Agent)
3
A
Potassium Sorbate
(Fragrance, Preservative)
Caesalpinia Spinosa Fruit Extract
(Skin Protecting)
Helianthus Annuus Sprout Extract
(Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
7
Citral
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens
3
CI 19140
(Colorant, Cosmetic Colorant)
1
CI 15985
(Cosmetic Colorant)

My Ingredient Notes

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Key ingredients

Cocamidopropyl Hydroxysultaine
Skin Conditioning
Glycerin
Humectant, Skin Protecting
Bis-Aminopropyl Diglycol Dimaleate
Skin Conditioning
Coconut Acid
Emollient
Guar Hydroxypropyltrimonium Chloride
Skin Conditioning
Polyglyceryl-4 Caprate
Skin Conditioning, Emollient

Benefits

No standout benefits flagged for this product.

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Citral — higher EWG
May not suit dry skin
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Sodium Cocoyl Alaninate
Hair conditioning, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSurfactant
Coco-glucoside
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingFoamingSurfactant
Lauryl Glucoside
Cleansing, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSurfactant
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Cocamidopropyl Hydroxysultaine
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Antistatic agentHair conditioningSkin conditioningSufactantFoam boostingViscosity increasing agentViscosity controlling
Acrylates Copolymer
Adhesive, Artificial nail builder
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B AdhesiveArtificial nail builderBinding agentFilm formingHair fixingSuspending agent -nonsurfactantAntistatic agentBinding
Polyquaternium-80
Cleansing, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CleansingEmulsifyingHair conditioning
Bis-Aminopropyl Diglycol Dimaleate
Hair conditioning, Hair waving or straightening
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningHair waving or straighteningSkin conditioning
Sodium Chloride
Bulking agent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 Bulking agentMaskingOral care agentViscosity controlling
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Coconut Acid
Cleansing, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A CleansingEmollientEmulsifyingSurfactant
Cocamide MIPA
Foam boosting, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 Foam boostingViscosity increasing agentEmulsifyingEmulsion stabilisingViscosity controlling
Guar Hydroxypropyltrimonium Chloride
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningViscosity increasing agentFilm formingSkin conditioningViscosity controlling
Polyglyceryl-4 Caprate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifyingSurfactant
+ 25 more — see the full ingredients list above
Sodium Cocoyl Isethionate
Cleansing, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingHair conditioningSurfactant Fungal-acne trigger
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin
Algin
Binding agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentFragranceViscosity increasing agentBindingMaskingViscosity controlling Bad for Sensitive SkinBad for Oily Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Hexyl Cinnamal
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Citral
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens

How to use

How to use

  • 1 Morning & evening: Suitable for both AM and PM use.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Officially notified as a cosmetic in Malaysia (NPRA). Government registration record.

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