iS Clinical C & E Serum Advance +
The iS Clinical C & E Serum Advance + is a serums, essence, ampoule. Our analysis of its 10 ingredients (7 low-risk) rates it Excellent (87/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
The iS Clinical C & E Serum Advance + is a serums, essence, ampoule. Our analysis of its 10 ingredients (7 low-risk) rates it Excellent (87/100). Based on its ingredients, it looks well-suited to oily / acne-prone 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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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
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Ascorbic Acid (Vitamin C)
(Antioxidant, Fragrance, Ph Adjuster, Skin Conditioning, Buffering Agent, Masking) |
Good for Dry Skin
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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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Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising) |
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Laureth-4
(Antistatic Agent, Emulsifying, Masking, Surfactant) |
Bad for Oily Skin
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Zinc Sulfate
(Cosmetic Astringent, Cosmetic Biocide, Oral Care Agent, Antimicrobial, Antiplaque) |
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Tocopherol (Vitamin E) |
Good for Dry Skin
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Bioflavonoids
(Skin Conditioning, Soothing) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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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 (Vitamin C)
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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