Pro Longer Lengths Renewing Mask
The L'Oréal Professionnel Pro Longer Lengths Renewing Mask is a emulsion. Our analysis of its 29 ingredients (16 low-risk) rates it Excellent (81/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The L'Oréal Professionnel Pro Longer Lengths Renewing Mask is a emulsion. Our analysis of its 29 ingredients (16 low-risk) rates it Excellent (81/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Hydroxypropyl Starch Phosphate
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling) |
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Quaternium-87
(Cleansing, Hair Conditioning, Surfactant) |
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Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling) |
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Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative) |
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
|
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Amodimethicone
(Antistatic Agent, Hair Conditioning) |
Silicone
|
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Isopropyl Alcohol
(Antifoaming Agent, Fragrance, Solvent, Viscosity Decreasing Agent, Perfuming, Viscosity Controlling) |
Bad for Sensitive Skin
|
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Euphorbia Cerifera Cera
(Astringent, Emulsion Stabilising, Film Forming, Perfuming, Skin Conditioning, Viscosity Controlling) |
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Methylparaben
(Fragrance, Preservative) |
Paraben
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Trideceth-5
(Emulsifying, Surfactant) |
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
|
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Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
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Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
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Trideceth-10
(Emulsifying, Surfactant) |
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Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
|
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Benzyl Salicylate
(Fragrance, Uv Absorber, Masking) |
Allergens
|
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Chlorhexidine Dihydrochloride
(Cosmetic Biocide, Oral Care Agent, Preservative, Antimicrobial) |
|
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
|
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
|
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
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2-Oleamido-1,3-Octadecanediol
(Skin Conditioning, Emollient) |
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Aminopropyl Triethoxysilane
(Surfactant) |
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Hydroxycitronellal
(Fragrance, Masking) |
Allergens
|
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Citronellol
(Fragrance, Masking) |
Allergens
|
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Acetic Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
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Polyquaternium-6
(Antistatic Agent, Film Forming, Hair Fixing) |
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PARFUM
(Fragrance, Perfuming) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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 →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Lactic 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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