The Stem Cell PDRN & Glutathione Pure Essence

Kor Japan

The Stem Cell PDRN & Glutathione Pure Essence

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About this product

The Kor Japan The Stem Cell PDRN & Glutathione Pure Essence is a serums, essence, ampoule. Our analysis of its 39 ingredients (29 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
39
Low-risk
29
Fragrance
Fragrance-free
Origin
Japan

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 12/8
Good for dry skin
Glyceryl Citrate/Lactate/Linoleate/Oleate Diphenyl Dimethicone Sodium Dilauramidoglutamide Lysine Sorbitol Caprylyl Glycol Butylene Glycol Sodium PCA Glycerin Propylene Glycol Cholesterol Triethylhexanoin Hydroxypropyltrimonium Hyaluronate
Caution for dry skin
Xanthan Gum Glycerin Polyglyceryl-10 Myristate Sodium Oleate Sodium Cocoyl Sarcosinate Hydrogenated Lecithin Polysorbate 60 Alcohol Denat.
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Alcohol Denat.
Sensitive Skin 1/10
Good for sensitive skin
Glycerin
Caution for sensitive skin
Glutathione Sodium Citrate Sorbitol Butylene Glycol Glycerin Propylene Glycol Triethylhexanoin Citric Acid Alcohol Denat. Phenoxyethanol

Ingredients list

39 total
Lower hazard (1) Higher hazard (4)
All39 Skin Conditioning29 Humectant12 Fragrance10 Solvent8 Hair Conditioning8 Viscosity Controlling8 Emulsifying7 Masking5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
Human Adipocyte Conditioned Media
(Not Reported)
Human Adipose Derived Mesenchymal Cell Exosomes
(Hair Conditioning, Skin Conditioning)
1
Glutathione
(Fragrance, Reducing)
1
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
4
Colloidal Gold
(Antimicrobial, Skin Conditioning)
1
Sodium DNA
(Skin Conditioning)
1
Oligopeptide-1
(Skin Conditioning)
1
Hydroxypropyltrimonium Hyaluronate
(Film Forming, Humectant)
Oligopeptide-68
(Bleaching)
Nicotinamide Mononucleotide
(Antioxidant)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
Sodium Dilauramidoglutamide Lysine
(Humectant)
1
B
Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
Polyglyceryl-10 Myristate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Triethylhexanoin
(Fragrance, Hair Conditioning, Antistatic Agent, Emollient, Masking, Refatting, Skin Conditioning, Solvent)
1
Diphenyl Dimethicone
(Antifoaming Agent, Emollient, Emulsifying, Hair Conditioning, Skin Conditioning)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Glyceryl Citrate/Lactate/Linoleate/Oleate
(Skin Conditioning, Emollient, Emulsifying)
Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
1,2-Hexanediol
(Solvent)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
Tropolone
(Skin Conditioning)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
Glycine Soja Oil
(Perfuming, Skin Conditioning, Skin Conditioning Emollient)
2
Sodium Oleate
(Sufactant, Emulsifying, Surfactant, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
2
B
Sodium Cocoyl Sarcosinate
(Cleansing, Hair Conditioning, Surfactant)
Sulfate
Sulfate
4
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
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)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Peptides
Supports skin hydration and improves firmness.
Antioxidants
Shields skin from free radical damage.
Vitamin C
Brightens, evens tone, and supports collagen.
Niacinamide
Strengthens, smooths, and brightens skin.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Dark SpotsFades dark spots for even skin tone.
Anti-AgingSoftens lines and helps skin look youthful.
BrighteningRestores radiance to dull, tired skin.
Reduces IrritationEases discomfort and supports skin resilience.
Scar HealingImproves the look of marks and scars.
Redness ReducingSoothes visible redness and calms irritation.

Concerns

Contains paraben
Contains sulfate
Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Human Adipocyte Conditioned Media
Not reported
Limited public safety data.Read moreShow less
EWG N/A Not reported
Human Adipose Derived Mesenchymal Cell Exosomes
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
Glutathione
Fragrance, Reducing
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceReducing
Sorbitol
Flavoring agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 Flavoring agentFragranceHumectantPlasticizerSkin conditioning
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Colloidal Gold
Antimicrobial, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 4 AntimicrobialSkin conditioning
Sodium DNA
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Oligopeptide-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydroxypropyltrimonium Hyaluronate
Film forming, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Film formingHumectant
Oligopeptide-68
Bleaching
Limited public safety data.Read moreShow less
EWG N/A Bleaching
Nicotinamide Mononucleotide
Antioxidant
Limited public safety data.Read moreShow less
EWG N/A Antioxidant
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Sodium Dilauramidoglutamide Lysine
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Humectant
Polyglyceryl-10 Myristate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmulsifyingSurfactant
+ 15 more — see the full ingredients list above
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Sodium PCA
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioning Good for Dry Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Sodium Cocoyl Sarcosinate
Cleansing, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 CIR B CleansingHair conditioningSurfactant Sulfate
Alcohol Denat.
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 4 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

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

Niacinamide 2–5% (up to 10%)

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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