Master Patch X-Large
The CosRX Master Patch X-Large is a treatment. Our analysis of its 6 ingredients (5 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to sensitive skin.
The CosRX Master Patch X-Large is a treatment. Our analysis of its 6 ingredients (5 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to sensitive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
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Cellulose Gum
(Binding Agent, Emulsion Stabilising, Film Forming, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling) |
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Hydrogenated Poly(C6-20 Olefin)
(Abrasive, Viscosity Controlling) |
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Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate
(Antioxidant) |
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Polyisobutene
(Binding Agent, Film Forming, Viscosity Increasing Agent, Binding, Viscosity Controlling) |
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Styrene/Isoprene Copolymer
(Film Forming, Opacifying) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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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.
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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Alternatives
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