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[ DemythSkin Verdict ]

K-Secret

K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean

Name: K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean
Brand: K-Secret

Eye CreamAnti-Aging

Efficacy

Strong

4.2 / 5.0

Safety

Mostly Safe

4.0 / 5.0

System Verdict

This is a legitimately strong eye cream, but the retinal headline is doing most of the heavy lifting—not the fermented bean marketing. The efficacy score is high because retinal appears in a meaningful position for an eye cream and is backed by niacinamide, cholesterol, sodium hyaluronate, adenosine, bakuchiol, vitamin C derivative, and peptides; the score is pulled down slightly because some of the supporting botanicals/ferments are likely present at lower levels and the formula cannot be treated like a pure, maximally concentrated retinal treatment.

Active Ingredients Detected

S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative

Retinal

A Tier: Good BasicsProven Results

GlycerinNiacinamideMacadamia Ternifolia Seed OilCholesterolAdenosineLactobacillus/Panax Ginseng Root Ferment FiltrateLactobacillus/Rice FermentLactobacillus/Soybean Ferment ExtractSaccharomyces/Coix Lacryma-Jobi Ma-yuen Seed Ferment FiltrateSaccharomyces/Potato Extract Ferment FiltrateTocopherolSodium Hyaluronate3-O-Ethyl Ascorbic Acid

B Tier: Supporting IngredientsPromising Ingredients

Pentaerythrityl TetraethylhexanoateBrassica Campestris (Rapeseed) SterolsPhytosteryl/Behenyl/Octyldodecyl Lauroyl GlutamateAluminum/Magnesium Hydroxide StearatePotassium Cetyl PhosphatePentaerythrityl Tetra-di-t-Butyl HydroxyhydrocinnamateBakuchiolsh-Oligopeptide-2sh-Polypeptide-1

C Tier: Marketing IdolsHype | Limited or Weak Data

Arctium Lappa Root ExtractCnidium Officinale Root ExtractDioscorea Japonica Root ExtractPaeonia Suffruticosa Root ExtractRehmannia Chinensis Root Extractsh-Oligopeptide-1

What Each Ingredient Does

Water: solvent base
Glycerin: humectant
Dipropylene Glycol: solvent humectant
Caprylic/Capric Triglyceride: light emollient
1,2-Hexanediol: solvent preservative
Butylene Glycol Dicaprylate/Dicaprate: emollient ester
Niacinamide: barrier-supporting vitamin
Pentaerythrityl Tetraethylhexanoate: emollient ester
Cetearyl Alcohol: fatty alcohol thickener
Butylene Glycol: humectant solvent
Cetearyl Olivate: emulsifier
Sorbitan Olivate: emulsifier
Hydrogenated Lecithin: lipid emulsifier
Macadamia Ternifolia Seed Oil: rich emollient oil
Carbomer: gel thickener
Tromethamine: pH adjuster
Propanediol: solvent humectant
Glyceryl Stearate: emollient emulsifier
Cholesterol: barrier lipid
Polyglyceryl-10 Oleate: emulsifier
Ethylhexylglycerin: preservative booster
Adenosine: soothing wrinkle support
Brassica Campestris (Rapeseed) Sterols: barrier sterol lipid
Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate: skin-conditioning lipid

Full Ingredient List (INCI)

Water, Glycerin, Dipropylene Glycol, Caprylic/Capric Triglyceride, 1,2-Hexanediol, Butylene Glycol Dicaprylate/Dicaprate, Niacinamide, Pentaerythrityl Tetraethylhexanoate, Cetearyl Alcohol, Butylene Glycol, Cetearyl Olivate, Sorbitan Olivate, Hydrogenated Lecithin, Macadamia Ternifolia Seed Oil, Carbomer, Tromethamine, Propanediol, Glyceryl Stearate, Cholesterol, Polyglyceryl-10 Oleate, Ethylhexylglycerin, Adenosine, Brassica Campestris (Rapeseed) Sterols, Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate, Retinal, Silica, Disodium EDTA, Aluminum/Magnesium Hydroxide Stearate, Lactobacillus/Panax Ginseng Root Ferment Filtrate, Lactobacillus/Rice Ferment, Lactobacillus/Soybean Ferment Extract, Saccharomyces/Coix Lacryma-Jobi Ma-yuen Seed Ferment Filtrate, Saccharomyces/Potato Extract Ferment Filtrate, Tocopherol, Potassium Cetyl Phosphate, Pentaerythrityl Tetra-di-t-Butyl Hydroxyhydrocinnamate, Sodium Hyaluronate, Arctium Lappa Root Extract, Cnidium Officinale Root Extract, Dioscorea Japonica Root Extract, Paeonia Suffruticosa Root Extract, Rehmannia Chinensis Root Extract, 3-O-Ethyl Ascorbic Acid, Bakuchiol, sh-Oligopeptide-1, sh-Oligopeptide-2, sh-Polypeptide-1

Frequently Asked

Is K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean worth it?

K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean scores 4.2 out of 5.0 for efficacy (Strong) and 4.0 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. This is a legitimately strong eye cream, but the retinal headline is doing most of the heavy lifting—not the fermented bean marketing. The efficacy score is high because retinal appears in a meaningful position for an ey

What are the key active ingredients in K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean?

K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean contains these gold-standard actives with strong clinical evidence: Retinal.

Does K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean. It scores 4.0 out of 5.0 for safety.

How is K-Secret Seoul 1988 Eye Cream : Retinal Liposome 4% + Fermented Bean scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-28. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.