The Stem Cell Power Skin Serum
The Kor Japan The Stem Cell Power Skin Serum is a emulsion. Our analysis of its 45 ingredients (28 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
The Kor Japan The Stem Cell Power Skin Serum is a emulsion. Our analysis of its 45 ingredients (28 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry 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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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
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Aspergillus/Rice Ferment Filtrate
(Skin Conditioning) |
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Cucumis Melo Phytoplacenta Extract
(Skin Conditioning) |
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Human Adipocyte Conditioned Media Extract
(Skin Conditioning Emollient) |
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Galactomyces Ferment Filtrate
(Humectant) |
Fungal Acne Trigger
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Astaxanthin
(Cosmetic Colorant, Skin Conditioning) |
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Ceramide NG
(Skin Conditioning) |
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Ceramide AP
(Hair Conditioning, Skin Conditioning) |
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Ceramide Ag
(Hair Conditioning, Humectant, Skin Conditioning) |
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Ceramide NP
(Hair Conditioning, Skin Conditioning) |
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Ceramide EOP
(Hair Conditioning, Skin Conditioning) |
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Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning) |
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ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
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Colloidal Gold
(Antimicrobial, Skin Conditioning) |
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Glutathione
(Fragrance, Reducing) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant) |
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Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous) |
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Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant) |
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Nicotinamide Mononucleotide
(Antioxidant) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Sodium Dilauramidoglutamide Lysine
(Humectant) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning) |
Good for Dry Skin
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning) |
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Polysorbate 60
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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1,2-Hexanediol
(Solvent) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Tropolone
(Skin Conditioning) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant) |
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Sucrose Stearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient) |
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Phytosterols
(Skin Conditioning) |
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arachis hypogaea oil
(Skin Conditioning) |
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PEG-60 Hydrogenated Castor Oil
(Fragrance, Sufactant, Surfactant) |
Fungal Acne Trigger
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinyl Palmitate
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
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Nicotinamide Mononucleotide, Niacinamide
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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