Brightening Serum
The ISOI Brightening Serum is a emulsion. Our analysis of its 37 ingredients (32 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.
The ISOI Brightening Serum is a emulsion. Our analysis of its 37 ingredients (32 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
Dry Skin
10/4
Oily/Acne-Prone Skin
1/0
Sensitive Skin
9/9
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
1
|
|
Rosa Damascena Flower Water
(Masking, Skin Conditioning, Skin Protecting) |
|
|
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
|
|
1
|
|
Arbutin
(Antioxidant, Skin Conditioning) |
Good for Dry Skin
|
|
1
|
|
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
|
|
1
|
A
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
1
|
B
|
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling) |
|
|
1
|
|
Rosa Damascena Flower Oil
(Masking, Skin Conditioning) |
|
|
1
|
|
Sodium DNA
(Skin Conditioning) |
|
|
1
|
|
Rosa Damascena Flower Extract
(Masking, Tonic) |
|
|
|
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
|
|
2
|
|
Ferulic Acid
(Antioxidant, Preservative, Uv Absorber, Antimicrobial) |
|
|
1
|
A
|
Trehalose
(Flavoring Agent, Humectant, Moisturising) |
|
|
1
|
A
|
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
|
1
|
A
|
Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
|
|
1
|
A
|
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
|
1
|
A
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
1
|
|
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning) |
|
|
1
|
|
Hydrolyzed Glycosaminoglycans
(Hair Conditioning, Skin Conditioning, Humectant) |
|
|
1
|
A
|
Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
|
1
|
|
Hydrolyzed Hyaluronic Acid
(Hair Conditioning, Humectant, Skin Conditioning) |
|
|
1
|
A
|
Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising) |
|
|
1
|
|
Houttuynia Cordata Extract
(Skin Conditioning) |
|
|
1
|
|
Castanea Crenata Shell Extract
(Skin Conditioning) |
|
|
|
|
salix alba bark extract
(Astringent, Hair Conditioning, Skin Conditioning, Soothing, Tonic) |
|
|
1
|
B
|
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic) |
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
1
|
|
Sophora Flavescens Root Extract
(Antioxidant, Skin Conditioning) |
|
|
1
|
|
Hippophae Rhamnoides Fruit Extract
(Skin Conditioning) |
|
|
1
|
A
|
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
|
|
1
|
A
|
1,2-Hexanediol
(Solvent) |
|
|
1
|
A
|
Calendula Officinalis Flower Extract
(Masking, Perfuming, Skin Conditioning) |
|
|
1
|
|
Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing) |
|
|
1
|
|
Paeonia Suffruticosa Root Extract
(Skin Protecting) |
|
|
|
|
glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing) |
|
5
|
|
Citronellol
(Fragrance, Masking) |
Allergens
|
7
|
|
Geraniol
(Fragrance, Masking, Tonic) |
Allergens
|
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EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
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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Other products people analyze alongside this one.