C-Esta Face Serum
The Jan Marini C-Esta Face Serum is a serums, essence, ampoule. Our analysis of its 33 ingredients (19 low-risk) rates it Great (75/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Jan Marini C-Esta Face Serum is a serums, essence, ampoule. Our analysis of its 33 ingredients (19 low-risk) rates it Great (75/100). Based on its ingredients, it looks well-suited to oily / acne-prone 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
5/6
Oily/Acne-Prone Skin
1/0
Sensitive Skin
7/13
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
1
|
A
|
Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
|
3
|
A
|
Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning) |
|
|
1
|
|
Butylene Glycol Dicaprylate/Dicaprate
(Emollient, Skin Conditioning) |
|
|
3
|
A
|
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
|
|
1
|
|
Acetyl Tyrosine
(Skin Conditioning, Tanning) |
|
4
|
|
Dimethyl MEA
(Ph Adjuster, Buffering Agent) |
|
|
|
PARFUM
(Fragrance, Perfuming) |
|
|
4
|
|
Zinc Sulfate
(Cosmetic Astringent, Cosmetic Biocide, Oral Care Agent, Antimicrobial, Antiplaque) |
|
|
3
|
B
|
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
|
|
3
|
|
Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
|
1
|
A
|
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
|
1
|
A
|
Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
|
1
|
|
Ergothioneine
(Antioxidant) |
|
|
1
|
|
Pyridoxine HCl
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
|
|
4
|
A
|
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing) |
|
|
2
|
A
|
Sodium Sulfite
(Antioxidant, Hair Waving Or Straightening, Reducing, Preservative) |
|
|
1
|
A
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
1
|
A
|
Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
|
|
2
|
A
|
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
|
4
|
|
Farnesol
(Fragrance, Deodorant, Masking, Solvent, Soothing) |
Allergens
|
|
5
|
|
Linalool
(Fragrance, Deodorant, Masking) |
Allergens
|
|
|
|
Amyl Cinnamal
(Perfuming) |
Allergens
|
7
|
|
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking) |
Allergens
|
|
7
|
|
Cinnamal
(Denaturant, Flavoring Agent, Fragrance, Masking) |
Allergens
|
|
6
|
|
Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
|
7
|
|
Eugenol
(Denaturant, Fragrance, Masking, Tonic) |
Allergens
|
|
7
|
|
Hydroxycitronellal
(Fragrance, Masking) |
Allergens
|
|
7
|
|
Butylphenyl Methylpropional
(Perfuming) |
Allergens
|
|
1
|
A
|
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
|
|
1
|
A
|
Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
|
1
|
A
|
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant) |
|
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
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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