GHK-Cu Peptide Firming Serum

Chen Jhuang

Where to buy Possibly in stock

About this product

The Chen Jhuang GHK-Cu Peptide Firming Serum is a serums, essence, ampoule. Our analysis of its 17 ingredients (14 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to dry skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
17
Low-risk
14
Fragrance
Fragrance-free
Origin
Taiwan
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 5/3
Good for dry skin
Dipotassium Glycyrrhizate Sodium Hyaluronate Glycerin Propylene Glycol Hydrolyzed Collagen
Caution for dry skin
Xanthan Gum Glycerin PEG-40 Hydrogenated Castor Oil
Oily/Acne-Prone Skin No data
Sensitive Skin 2/4
Good for sensitive skin
Glycerin Allantoin
Caution for sensitive skin
Glycerin Propylene Glycol PEG-40 Hydrogenated Castor Oil Phenoxyethanol

Ingredients list

17 total
Lower hazard (1) Higher hazard (4)
All17 Skin Conditioning17 Humectant8 Solvent4 Fragrance4 Hair Conditioning3 Skin Protecting3 Viscosity Decreasing Agent2 Viscosity Controlling2
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
Acetamidoethoxyethanol
(Humectant)
1
A
Copper Tripeptide-1
(Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Dipeptide-2
(Skin Conditioning)
1
A
Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant)
Palmitoyl Hexapeptide-12
(Skin Conditioning)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
1
A
1,2-Hexanediol
(Solvent)
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
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
3
B
PEG-40 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant, Perfuming)
Fungal Acne
Fungal Acne Trigger
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.
Niacinamide
Strengthens, smooths, and brightens skin.
Hyaluronic Acid
Hydrates by attracting and holding water.

Benefits

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

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Acetamidoethoxyethanol
Humectant
Limited public safety data.Read moreShow less
EWG N/A Humectant
Copper Tripeptide-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
Dipeptide-2
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydrolyzed Collagen
Hair conditioning, Nail conditioning agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningNail conditioning agentSkin conditioningAntistatic agentEmollientFilm formingHumectant
Palmitoyl Hexapeptide-12
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Chlorphenesin
Cosmetic biocide, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Cosmetic biocideAntimicrobialPreservative
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Dipotassium Glycyrrhizate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningHumectant
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 Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant 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
PEG-40 Hydrogenated Castor Oil
Fragrance, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceEmulsifyingSurfactantPerfuming Fungal-acne trigger
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 & 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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