Holi (C) The C Duo
The Agent Nateur Holi (C) The C Duo is a treatment. Our analysis of its 2 ingredients (2 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone and sensitive skin.
The Agent Nateur Holi (C) The C Duo is a treatment. Our analysis of its 2 ingredients (2 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone and sensitive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
|
|
|
Calcium Ketogluconate
(Skin Conditioning) |
|
|
|
|
Sodium Ascorbyl Phosphate
(Antioxidant) |
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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.
Sodium Ascorbyl Phosphate
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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