Eryfotona AK Fluid
The ISDIN Eryfotona AK Fluid is a treatment. Our analysis of its 33 ingredients (26 low-risk) rates it Excellent (97/100). 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 ISDIN Eryfotona AK Fluid is a treatment. Our analysis of its 33 ingredients (26 low-risk) rates it Excellent (97/100). 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
9/4
Oily/Acne-Prone Skin
1/0
Sensitive Skin
3/6
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
3
|
|
Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
|
2
|
|
Butyl Methoxydibenzoylmethane
(Uv Absorber, Uv Filter) |
|
|
|
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
(Skin Conditioning, Uv Absorber, Uv Filter) |
|
|
|
|
Bisabolol
(Fragrance, Skin Conditioning, Soothing) |
|
|
2
|
A
|
Cyclohexasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
|
|
3
|
A
|
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
Silicone
|
|
1
|
A
|
Dibutyl Adipate
(Plasticizer, Skin Conditioning, Emollient, Solvent, Film Forming) |
|
|
3
|
A
|
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
|
|
1
|
A
|
Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
|
3
|
|
Octocrylene
(Sunscreen Agent, Uv Absorber, Uv Filter) |
|
|
1
|
A
|
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
|
3
|
A
|
PEG-10 Dimethicone
(Hair Conditioning, Skin Conditioning) |
|
|
1
|
|
Plankton Extract
(Skin Conditioning) |
|
|
1
3
|
|
Titanium/Titanium Dioxide
(Cosmetic Colorant, Opacifying) |
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
|
|
|
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
|
|
2
|
A
|
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
|
1
|
|
Dicaprylyl Carbonate
(Skin Conditioning, Emollient) |
|
|
1
|
A
|
Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
|
|
1
|
A
|
Disteardimonium Hectorite
(Stabilising, Viscosity Controlling) |
|
|
|
|
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
|
|
4
|
|
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
|
1
|
A
|
Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
|
|
2
3
|
|
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
|
|
3
|
A
|
PEG-8
(Humectant, Solvent) |
|
|
1
|
|
Sodium Chloride
(Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling) |
|
|
1
|
A
|
Nylon-12
(Bulking Agent, Opacifying, Viscosity Controlling) |
|
|
1
|
A
|
Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
|
|
|
PARFUM
(Fragrance, Perfuming) |
|
|
3
|
|
PEG-30 Dipolyhydroxystearate
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
|
1
2
|
A
|
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
|
|
1
|
|
Water
(Solvent) |
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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, Ascorbyl Palmitate
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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