Vitamin C Brightening Serum
The Hyeja Vitamin C Brightening Serum is a emulsion. Our analysis of its 33 ingredients (26 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
The Hyeja Vitamin C Brightening Serum is a emulsion. Our analysis of its 33 ingredients (26 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
Dry Skin
5/9
Oily/Acne-Prone Skin
3/0
Sensitive Skin
5/8
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
B
|
Citrus Junos Fruit Extract
(Skin Conditioning) |
|
|
1
|
B
|
Camellia Sinensis Leaf Water
(Masking, Perfuming, Tonic) |
Good for Oily Skin
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
1
|
|
Water
(Solvent) |
|
|
1
|
A
|
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling) |
|
|
1
|
A
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
1
|
A
|
1,2-Hexanediol
(Solvent) |
|
|
|
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
|
|
1
|
B
|
Citrus Junos Peel Oil
(Cosmetic Astringent) |
|
|
|
A
|
Panax Ginseng Root Water
(Hair Conditioning, Masking, Skin Protecting, Tonic) |
|
|
1
|
|
Polyglyceryl-10 Myristate
(Skin Conditioning, Emulsifying, Surfactant) |
|
|
1
|
B
|
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic) |
|
|
|
|
Saccharum Officinarum Extract
(Moisturising, Skin Conditioning) |
|
|
|
|
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
|
|
1
|
|
Houttuynia Cordata Extract
(Skin Conditioning) |
|
|
1
|
|
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling) |
|
|
1
|
|
Ceramide NP
(Hair Conditioning, Skin Conditioning) |
|
|
1
|
B
|
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
|
|
1
|
|
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling) |
|
|
2
|
A
|
Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
|
|
3
|
B
|
Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning) |
|
|
1
|
|
Adenosine
(Skin Conditioning) |
|
|
1
|
|
Sodium Phytate
(Chelating Agent, Oral Care Agent) |
|
|
1
|
A
|
Sorbitan Isostearate
(Emulsifying, Surfactant) |
|
|
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
Fungal Acne Trigger
|
|
|
|
CHAMOMILLA RECUTITA FLOWER EXTRACT
(Fragrance, Skin Conditioning) |
|
|
1
|
|
Portulaca Oleracea Extract
(Skin Conditioning) |
|
|
1
|
|
Betula Alba Juice
(Astringent, Tonic) |
|
|
|
|
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
|
|
1
|
A
|
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding) |
|
|
1
|
|
Saccharide Hydrolysate
(Humectant) |
|
|
1
|
A
|
Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
6
|
|
Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
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How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
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.
3-O-ETHYL ASCORBIC ACID
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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