Triple C Lightning Liquid
The CosRX Triple C Lightning Liquid is a serums, essence, ampoule. Our analysis of its 10 ingredients (10 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.
The CosRX Triple C Lightning Liquid is a serums, essence, ampoule. Our analysis of its 10 ingredients (10 low-risk) rates it Excellent (100/100). 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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1,2-Hexanediol
(Solvent) |
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Glycyrrhiza Glabra (Licorice) Leaf Extract
(Skin Conditioning) |
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Cassia Obtusifolia Seed Extract
(Skin Conditioning) |
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Aronia Melanocarpa Fruit Extract
(Skin Conditioning) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Pullulan
(Binding Agent, Film Forming, Binding) |
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Ascorbic Acid (Vitamin C)
(Antioxidant, Fragrance, Ph Adjuster, Skin Conditioning, Buffering Agent, Masking) |
Good for Dry Skin
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Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic) |
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Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
|
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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.
Ascorbic Acid (Vitamin C)
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.
From the community
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3 reviews restored from our original community.
Nothing fades dark marks and brightens my skin like this serum/ampule. This was formulated by CosRX and Charlotte Cho - Founder of Soko Glam. It is similar to Klairs freshly juiced vitamin C serum, however the CosRx version contains 20.5% Vitamin C which makes it infinitely more powerful. Within one week I could see a remarkable improvement in my skin - it was brighter, less pigmented and there were no breakouts. I use a few drops of this every few nights as this is very strong and it makes y...
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