R&R Day Serum
The Undefined Beauty R&R Day Serum is a serums, essence, ampoule. Our analysis of its 19 ingredients (13 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to dry and sensitive skin.
The Undefined Beauty R&R Day Serum is a serums, essence, ampoule. Our analysis of its 19 ingredients (13 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to 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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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
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Ascorbyl Glucoside
(Antioxidant) |
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Alpha-Arbutin
(Antioxidant, Skin Conditioning) |
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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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Kojic Acid
(Antioxidant) |
Good for Dry Skin
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Aloe Barbadensis Leaf Juice
(Skin Conditioning) |
Good for Sensitive Skin
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Terminalia Bellerica Fruit
(Astringent, Skin Conditioning, Skin Conditioning Emollient) |
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glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing) |
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Portulaca Oleracea Extract
(Skin Conditioning) |
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Tremella Fuciformis Polysaccharide
(Emulsion Stabilising, Film Forming, Skin Conditioning) |
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Morinda Citrifolia Fruit Extract
(Skin Conditioning) |
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Algin
(Binding Agent, Fragrance, Viscosity Increasing Agent, Binding, Masking, Viscosity Controlling) |
Bad for Sensitive Skin
Bad for Oily Skin
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Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling) |
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Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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1,2-Hexanediol
(Solvent) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
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, Ascorbyl Glucoside
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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