Jeju Island Peptide Barrier Serum

Byrana

Where to buy Possibly in stock

About this product

The Byrana Jeju Island Peptide Barrier Serum is a serums, essence, ampoule. Our analysis of its 58 ingredients (42 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
58
Low-risk
42
Fragrance
Fragrance-free
Origin
South Korea
Data updated
Jun 2026

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 8/7
Good for dry skin
Acetyl Hexapeptide-8 Caprylic/Capric Triglyceride Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Sodium Lactate Lecithin
Caution for dry skin
Sorbitan Sesquioleate Glycerin Hydrogenated Lecithin Polysorbate 20 Polysorbate 60 Lecithin Tranexamic Acid
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Tranexamic Acid
Sensitive Skin 10/7
Good for sensitive skin
Ulva Lactuca Extract Laminaria Japonica Extract Enteromorpha Compressa Extract Undaria Pinnatifida Extract Glycerin Tocopheryl Acetate Allantoin Aloe Barbadensis Leaf Water Sargassum Muticum Extract sh-Oligopeptide-2
Caution for sensitive skin
Laminaria Japonica Extract Disodium Phosphate Arginine Caprylic/Capric Triglyceride Butylene Glycol Glycerin Aloe Barbadensis Leaf Water

Ingredients list

58 total
Lower hazard (1) Higher hazard (3)
All58 Skin Conditioning56 Hair Conditioning9 Skin Protecting9 Humectant8 Solvent5 Fragrance5 Emulsifying5 Surfactant5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
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
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
3
B
Aloe Barbadensis Leaf Water
(Masking)
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Palmitoyl Tripeptide-1
(Skin Conditioning)
1
A
Palmitoyl Tetrapeptide-7
(Skin Conditioning)
1
Acetyl Hexapeptide-8
(Humectant, Skin Conditioning)
1
A
Copper Tripeptide-1
(Skin Conditioning)
sh-Oligopeptide-1
(Skin Conditioning)
sh-Oligopeptide-2
(Skin Conditioning, Skin Protecting)
sh-Polypeptide-1
(Skin Conditioning)
sh-Polypeptide-9
(Skin Conditioning)
sh-Polypeptide-11
(Skin Conditioning)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
Ceramide AP
(Hair Conditioning, Skin Conditioning)
Ceramide EOP
(Hair Conditioning, Skin Conditioning)
1
Undaria Pinnatifida Extract
(Skin Conditioning, Skin Protecting)
1
Chlorella Vulgaris Extract
(Skin Conditioning)
1
Morus Alba Root Extract
(Bleaching, Skin Conditioning)
1
Enteromorpha Compressa Extract
(Skin Protecting)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
Hizikia Fusiforme Extract
(Skin Conditioning)
Ecklonia Cava Extract
(Skin Conditioning)
1
Laminaria Japonica Extract
(Fragrance, Skin Protecting)
Codium Fragile Extract
(Skin Conditioning)
Sargassum Fulvellum Extract
(Skin Conditioning)
1
Porphyra Yezoensis Extract
(Skin Conditioning)
Sargassum Muticum Extract
(Skin Protecting)
1
Euglena Gracilis Extract
(Skin Conditioning)
Chlorella Ferment
(Skin Conditioning)
1
Hydrolyzed Ulva Lactuca Extract
(Skin Conditioning)
1
Hydrolyzed Enteromorpha Compressa
(Skin Conditioning)
1
B
Sodium Phosphate
(Buffering Agent)
1
Salicornia Herbacea Extract
(Skin Conditioning)
Tranexamic Acid
(Cosmetic Astringent, Skin Conditioning)
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
1
A
Sorbitan Sesquioleate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
1,2-Hexanediol
(Solvent)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Acetyl Glutamine
(Skin Conditioning)
3
B
Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
Bacillus/Folic Acid Ferment Filtrate Extract
(Antioxidant, Humectant, Skin Conditioning)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
Ulva Lactuca Extract
(Skin Conditioning, Skin Protecting)
1
B
Disodium Phosphate
(Buffering Agent, Anticorrosive, Fragrance, Ph Adjuster, Masking)

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.
Ceramides
Locks in moisture and supports skin barrier.
Antioxidants
Shields skin from free radical damage.
Vitamin E
Protects skin and soothes irritation.
Niacinamide
Strengthens, smooths, and brightens skin.
Hyaluronic Acid
Hydrates by attracting and holding water.
Tranexamic Acid
Helps fade dark spots and even skin tone.
Show all 7 key ingredients

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
Scar HealingImproves the look of marks and scars.
Redness ReducingSoothes visible redness and calms irritation.
Reduces IrritationEases discomfort and supports skin resilience.
BrighteningRestores radiance to dull, tired skin.
Skin TextureSmooths rough patches and refines texture.

Concerns

Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Palmitoyl Tripeptide-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
Palmitoyl Tetrapeptide-7
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
Acetyl Hexapeptide-8
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioning
Copper Tripeptide-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
sh-Oligopeptide-1
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
sh-Oligopeptide-2
Skin conditioning, Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin protecting
sh-Polypeptide-1
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
sh-Polypeptide-9
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
sh-Polypeptide-11
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Ceramide NP
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningSkin conditioning
Ceramide AP
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
Ceramide EOP
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
Undaria Pinnatifida Extract
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningSkin protecting
+ 33 more — see the full ingredients list above
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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Aloe Barbadensis Leaf Water
Masking
Low-to-moderate hazard.Read moreShow less
EWG 1–3 CIR B Masking Good for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Sorbitan Sesquioleate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning & evening: Suitable for both AM and PM use.

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.

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.

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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