IAU Serum Mask
The Lebel All Your Own IAU Serum Mask is a misc. Our analysis of its 32 ingredients (21 low-risk) rates it Excellent (93/100). 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 Lebel All Your Own IAU Serum Mask is a misc. Our analysis of its 32 ingredients (21 low-risk) rates it Excellent (93/100). 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
Dry Skin
13/4
Oily/Acne-Prone Skin
1/0
Sensitive Skin
3/10
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
1
|
A
|
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, 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
Fungal Acne Trigger
|
|
3
|
A
|
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
Silicone
|
|
3
|
A
|
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
|
|
1
|
A
|
Hydrogenated Polyisobutene
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Viscosity Controlling) |
|
|
3
|
B
|
Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative) |
|
|
1
|
A
|
Amodimethicone
(Antistatic Agent, Hair Conditioning) |
Silicone
|
|
1
|
|
PPG-9 Diglyceryl Ether
(Skin Conditioning, Emollient) |
|
|
1
|
A
|
Plukenetia Volubilis Seed Oil
(Emollient, Humectant, Skin Protecting) |
|
|
|
Dihydroxypropyl Arginine HCl
(Hair Conditioning, Humectant, Skin Conditioning) |
|
|
1
|
A
|
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
|
|
|
Polyquaternium-107
(Hair Conditioning) |
|
|
1
|
|
C10-30 Cholesterol/Lanosterol Esters
(Emulsifying, Skin Conditioning, Viscosity Controlling) |
|
|
1
|
|
Lanolin Acid
(Cleansing, Emollient, Emulsifying, Surfactant) |
Bad for Oily Skin
|
|
1
|
|
Phytosteryl/Octyldodecyl Lauroyl Glutamate
(Skin Conditioning) |
|
|
|
|
Dioctyldodeceth-2 Lauroyl Glutamate
(Emollient, Hair Conditioning, Skin Conditioning, Surfactant) |
|
|
3
|
|
Distearyldimonium Chloride
(Antistatic Agent, Hair Conditioning) |
|
|
1
|
B
|
Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent) |
|
|
|
|
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
|
|
|
|
Helianthus Annuus Seed Extract
(Skin Conditioning) |
|
|
|
|
Steartrimonium Bromide
(Antistatic Agent, Hair Conditioning, Preservative) |
|
|
1
|
A
|
Guar Hydroxypropyltrimonium Chloride
(Antistatic Agent, Hair Conditioning, Viscosity Increasing Agent, Film Forming, Skin Conditioning, Viscosity Controlling) |
|
|
|
|
PARFUM
(Fragrance, Perfuming) |
|
4
|
B
|
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
|
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
|
4
|
A
|
Methylparaben
(Fragrance, Preservative) |
Paraben
|
7
|
A
|
Propylparaben
(Fragrance, Preservative, Perfuming) |
Paraben
|
|
2
|
|
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
|
2
|
A
|
Isopropyl Alcohol
(Antifoaming Agent, Fragrance, Solvent, Viscosity Decreasing Agent, Perfuming, Viscosity Controlling) |
Bad for Sensitive Skin
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
1
|
|
Caramel
(Colorant, Fragrance, Cosmetic Colorant, Masking) |
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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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