Jan Marini Skin Research, Inc. C-ESTA Serum, Oil Control
The Jan Marini Skin Research, Inc. C-ESTA Serum, Oil Control is a serums, essence, ampoule. Our analysis of its 24 ingredients (15 low-risk) rates it Great (79/100). 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 Jan Marini Skin Research, Inc. C-ESTA Serum, Oil Control is a serums, essence, ampoule. Our analysis of its 24 ingredients (15 low-risk) rates it Great (79/100). 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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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
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Camellia Oleifera Leaf Extract
(Astringent, Skin Conditioning) |
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Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
Silicone
|
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Cyclohexasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Acrylates Copolymer
(Adhesive, Artificial Nail Builder, Binding Agent, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding) |
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Dimethyl MEA
(Ph Adjuster, Buffering Agent) |
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Fragrance
(Deodorant, Masking, Perfuming) |
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Tyrosine
(Fragrance, Hair Conditioning, Proprietary, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Masking, Skin Conditioning) |
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Lauryl Methacrylate/Glycol Dimethacrylate Crosspolymer
(Film Forming, Hair Fixing) |
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Pyridoxine
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Farnesol
(Fragrance, Deodorant, Masking, Solvent, Soothing) |
Allergens
|
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
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Nylon-12
(Bulking Agent, Opacifying, Viscosity Controlling) |
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Zinc Sulfate
(Cosmetic Astringent, Cosmetic Biocide, Oral Care Agent, Antimicrobial, Antiplaque) |
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Dehydroxanthan Gum
(Emulsion Stabilising, Film Forming, Hair Fixing, Viscosity Controlling) |
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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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Sodium Metabisulfite
(Antioxidant, Preservative, Reducing) |
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Diazolidinyl Urea
(Preservative) |
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Methylparaben
(Fragrance, Preservative) |
Paraben
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Propylparaben
(Fragrance, Preservative, Perfuming) |
Paraben
|
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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.
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.
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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