Underglow Blurring Primer
The Iconic London Underglow Blurring Primer is a misc. Our analysis of its 37 ingredients (31 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Iconic London Underglow Blurring Primer is a misc. Our analysis of its 37 ingredients (31 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to 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
9/4
Oily/Acne-Prone Skin
No data
Sensitive Skin
2/6
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
3
|
A
|
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
|
|
3
|
A
|
PEG-10 Dimethicone
(Hair Conditioning, Skin Conditioning) |
|
|
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
|
|
1
|
B
|
Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent) |
|
|
1
|
A
|
HDI/Trimethylol Hexyllactone Crosspolymer
(Anticaking Agent) |
|
|
1
|
A
|
Pentylene Glycol
(Skin Conditioning, Solvent) |
|
|
1
|
B
|
Coco-Caprylate/Caprate
(Emollient, Skin Conditioning) |
|
|
1
|
|
Dicaprylyl Ether
(Skin Conditioning, Emollient, Solvent) |
|
|
1
2
|
A
|
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
|
|
1
|
A
|
Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling) |
|
|
3
|
A
|
Cetyl PEG/PPG-10/1 Dimethicone
(Emulsifying, Skin Conditioning, Surfactant) |
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
|
1
|
B
|
Isododecane
(Fragrance, Solvent, Emollient, Perfuming) |
|
|
1
|
|
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling) |
|
|
1
|
A
|
Dimethicone/Vinyl Dimethicone Crosspolymer
(Viscosity Controlling) |
|
|
1
|
A
|
Magnesium Sulfate
(Bulking Agent, Hair Conditioning, Viscosity Controlling) |
|
|
1
|
A
|
Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
|
1
|
|
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
|
|
1
|
A
|
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising) |
Silicone
|
|
1
|
A
|
Disteardimonium Hectorite
(Stabilising, Viscosity Controlling) |
|
|
|
PARFUM
(Fragrance, Perfuming) |
|
|
1
|
A
|
Propylene Carbonate
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
|
|
2
|
A
|
Tin Oxide
(Abrasive, Bulking Agent, Opacifying, Viscosity Controlling) |
|
|
1
|
|
Artemisia Capillaris Flower Extract
(Skin Conditioning) |
|
|
1
|
|
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning) |
|
|
|
|
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
|
|
1
|
A
|
1,2-Hexanediol
(Solvent) |
|
|
1
|
A
|
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
|
|
1
|
A
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
|
|
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
|
|
4
|
|
Colloidal Gold
(Antimicrobial, Skin Conditioning) |
|
|
1
|
|
Glutathione
(Fragrance, Reducing) |
|
|
|
|
CI 77891
(Colorant) |
|
|
1
2
|
|
CI 77491
(Colorant, Cosmetic Colorant) |
|
|
1
|
|
CI 77492
(Colorant, Cosmetic Colorant) |
|
|
2
|
|
CI 77499
(Colorant, Cosmetic Colorant) |
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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.
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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