Brightening & Dark Spot Treatment Serum
The Teratu Beauty Brightening & Dark Spot Treatment Serum is a serums, essence, ampoule. Our analysis of its 35 ingredients (31 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.
The Teratu Beauty Brightening & Dark Spot Treatment Serum is a serums, essence, ampoule. Our analysis of its 35 ingredients (31 low-risk) rates it Excellent (99/100). 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
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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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
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Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning) |
Good for Dry Skin
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Alpha-Arbutin
(Antioxidant, Skin Conditioning) |
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Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic) |
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Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
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Lactobacillus/Collagen/Mesembryanthemum Crystallinum Leaf Extract Ferment Lysate
(Skin Conditioning) |
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Arisaema Amurense Extract
(Skin Conditioning) |
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Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
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Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant) |
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Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant) |
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Tranexamoyl Dipeptide-23
(Bleaching) |
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Polyglutamic Acid
(Skin Conditioning) |
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Arbutin
(Antioxidant, Skin Conditioning) |
Good for Dry Skin
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Acetyl Tyrosine
(Skin Conditioning, Tanning) |
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Saxifraga Sarmentosa Extract
(Skin Conditioning) |
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Paeonia Suffruticosa Root Extract
(Skin Protecting) |
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Aminopropyl Ascorbyl Phosphate
(Antioxidant, Skin Conditioning) |
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Hydrolyzed Hyaluronic Acid
(Hair Conditioning, Humectant, Skin Conditioning) |
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Hydroxypropyltrimonium Hyaluronate
(Film Forming, Humectant) |
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Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing) |
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Glutathione
(Fragrance, Reducing) |
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Sodium Acetylated Hyaluronate
(Humectant) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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1,2-Hexanediol
(Solvent) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sodium Sulfite
(Antioxidant, Hair Waving Or Straightening, Reducing, Preservative) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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.
Aminopropyl Ascorbyl Phosphate
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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