No.3 Hair Perfector

Olaplex

Where to buy Possibly in stock

About this product

The Olaplex No.3 Hair Perfector is a misc. Our analysis of its 27 ingredients (20 low-risk) rates it Excellent (97/100). 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
27
Low-risk
20
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 5/6
Good for dry skin
Cetearyl Alcohol Cetyl Alcohol Glycerin Propylene Glycol Phytantriol
Caution for dry skin
Behentrimonium Methosulfate Cetrimonium Methosulfate Cetyl Alcohol Stearamidopropyl Dimethylamine Glycerin Cetrimonium Chloride
Oily/Acne-Prone Skin No data
Sensitive Skin 3/8
Good for sensitive skin
Glycerin Tocopheryl Acetate Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Cetyl Alcohol Glycerin Propylene Glycol Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Benzyl Benzoate

Ingredients list

27 total
Lower hazard (1) Higher hazard (6)
All27 Fragrance10 Hair Conditioning9 Skin Conditioning9 Antistatic Agent6 Emulsion Stabilising6 Emulsifying6 Humectant5 Surfactant5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
Bis-Aminopropyl Diglycol Dimaleate
(Hair Conditioning, Hair Waving Or Straightening, Skin Conditioning)
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
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
B
Behentrimonium Methosulfate
(Antistatic Agent, Hair Conditioning, Surfactant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, 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
1
A
Hydroxyethyl Ethylcellulose
(Adhesive, Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Emulsifying, Viscosity Controlling)
1
B
Stearamidopropyl Dimethylamine
(Antistatic Agent, Emulsifying, Hair Conditioning, Surfactant)
1
Quaternium-91
(Hair Conditioning)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
B
Cetrimonium Methosulfate
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Hair Conditioning)
3
B
Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
PARFUM
(Fragrance, Perfuming)
2
A
Tetrasodium EDTA
(Chelating Agent)
1
B
Polyquaternium-37
(Antistatic Agent, Film Forming, Hair Fixing)
6
A
Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking)
Allergens
Allergens
2
Etidronic Acid
(Chelating Agent)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
2
3
A
Phytantriol
(Anticaking Agent, Hair Conditioning, Skin Conditioning, Humectant)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
Potassium Sorbate
(Fragrance, Preservative)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Bis-Aminopropyl Diglycol Dimaleate
Skin Conditioning
Propylene Glycol
Humectant, Skin Conditioning
Cetearyl Alcohol
Emollient
Cetyl Alcohol
Emollient
Glycerin
Humectant, Skin Protecting
ASCORBIC ACID
Antioxidant, Skin Conditioning

Benefits

No standout benefits flagged for this product.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
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
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Behentrimonium Methosulfate
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSurfactant
Cetyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceOpacifyingEmulsifyingSurfactantFoam boostingViscosity increasing agentEmollientMaskingViscosity controlling
Hydroxyethyl Ethylcellulose
Adhesive, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AdhesiveBinding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingEmulsifyingViscosity controlling
Stearamidopropyl Dimethylamine
Antistatic agent, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentEmulsifyingHair conditioningSurfactant
Quaternium-91
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioning
Sodium Benzoate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservativeAnticorrosiveMasking
Cetrimonium Methosulfate
Antistatic agent, Cosmetic biocide
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentCosmetic biocideEmulsifyingSurfactantAntimicrobialHair conditioning
Cetrimonium Chloride
Antistatic agent, Cosmetic biocide
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentCosmetic biocideEmulsifyingSurfactantAntimicrobialPreservative
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Tetrasodium EDTA
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Chelating agent
Polyquaternium-37
Antistatic agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentFilm formingHair fixing
Etidronic Acid
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 2 Chelating agent
+ 4 more — see the full ingredients list above
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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
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
Benzyl Benzoate
Fragrance, Solvent
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A FragranceSolventAntimicrobialMasking Allergens
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
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

How to use

How to use

  • 1 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

ASCORBIC ACID

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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