Prime Lab Up To 24H Redness Eraser
The L'Oreal Prime Lab Up To 24H Redness Eraser is a misc. Our analysis of its 36 ingredients (25 low-risk) rates it Excellent (91/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The L'Oreal Prime Lab Up To 24H Redness Eraser is a misc. Our analysis of its 36 ingredients (25 low-risk) rates it Excellent (91/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. 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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Isododecane
(Fragrance, Solvent, Emollient, Perfuming) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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Trimethylsiloxysilicate
(Antifoaming Agent, Emollient, Skin Conditioning) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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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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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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PEG-10 Dimethicone
(Hair Conditioning, Skin Conditioning) |
|
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Perlite
(Abrasive, Absorbent, Bulking Agent, Suspending Agent Nonsurfactant) |
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Calcium Aluminum Borosilicate
(Bulking Agent) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Isopropyl Lauroyl Sarcosinate
(Skin Conditioning) |
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Diisopropyl Sebacate
(Plasticizer, Skin Conditioning, Emollient, Solvent) |
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Disteardimonium Hectorite
(Stabilising, Viscosity Controlling) |
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Bis-PEG/PPG-14/14 Dimethicone
(Emollient, Emulsifying, Skin Conditioning, Surfactant) |
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Magnesium Sulfate
(Bulking Agent, Hair Conditioning, Viscosity Controlling) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling) |
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Dipentaerythrityl Tetrahydroxystearate/Tetraisostearate
(Skin Conditioning, Viscosity Controlling) |
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Silica Silylate
(Antifoaming Agent, Bulking Agent, Skin Conditioning, Emollient, Suspending Agent Nonsurfactant, Anticaking Agent, Emulsion Stabilising, Viscosity Controlling) |
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Disodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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PARFUM
(Fragrance, Perfuming) |
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Aluminum Hydroxide
(Emollient, Humectant, Opacifying, Skin Protecting, Viscosity Controlling) |
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
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Geraniol
(Fragrance, Masking, Tonic) |
Allergens
|
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Citronellol
(Fragrance, Masking) |
Allergens
|
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CI 77891
(Colorant) |
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CI 77491
(Colorant, Cosmetic Colorant) |
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CI 77492
(Colorant, Cosmetic Colorant) |
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CI 77499
(Colorant, Cosmetic Colorant) |
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CI 77288
(Colorant) |
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CI 77163
(Colorant) |
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Mica
(Cosmetic Colorant, Opacifying) |
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.
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
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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