RX Complex Serum
The Le Mieux RX Complex Serum is a serums, essence, ampoule. Our analysis of its 55 ingredients (38 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Le Mieux RX Complex Serum is a serums, essence, ampoule. Our analysis of its 55 ingredients (38 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Galactomyces Ferment Filtrate
(Humectant) |
Fungal Acne Trigger
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Oryza Sativa Bran Water
(Fragrance, Perfuming) |
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Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising) |
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Zinc Hydrolyzed Hyaluronate
(Humectant, Skin Conditioning) |
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Hydroxypropyltrimonium Hyaluronate
(Film Forming, Humectant) |
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Sodium Hyaluronate Dimethylsilanol
(Humectant, Skin Conditioning) |
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Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning) |
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C12-13 Alkyl Glyceryl Hydrolyzed Hyaluronate
(Emollient, Humectant, Skin Conditioning) |
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Hydrolyzed Hyaluronic Acid
(Hair Conditioning, Humectant, Skin Conditioning) |
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Sodium Acetylated Hyaluronate
(Humectant) |
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Ascorbyl Propyl Hyaluronate
(Skin Conditioning) |
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Palmitoyl Tripeptide-5
(Skin Conditioning) |
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Acetyl Octapeptide-3
(Humectant, Skin Conditioning) |
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Nonapeptide-1
(Skin Conditioning, Hair Conditioning) |
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Hydrolyzed Rice Protein
(Hair Conditioning, Skin Conditioning, Antistatic Agent) |
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Dipeptide Diaminobutyroyl Benzylamide Diacetate
(Skin Conditioning) |
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Palmitoyl Tetrapeptide-7
(Skin Conditioning) |
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Palmitoyl Tripeptide-1
(Skin Conditioning) |
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Tranexamic Acid
(Cosmetic Astringent, Skin Conditioning) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Magnesium Ascorbyl Phosphate
(Antioxidant) |
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Ceramide NS
(Hair Conditioning, Skin Conditioning) |
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Superoxide Dismutase
(Reducing, Skin Conditioning, Antioxidant) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Phospholipids
(Skin Conditioning) |
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Lysolecithin
(Emulsifying, Surfactant) |
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Tocotrienols
(Oral Care Agent, Skin Conditioning, Uv Absorber) |
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Glucosamine HCl
(Ph Adjuster, Antistatic Agent, Hair Conditioning) |
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Enteromorpha Compressa Extract
(Skin Protecting) |
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Bambusa Vulgaris Leaf/Stem Extract
(Humectant, Oral Care Agent) |
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Citrullus Lanatus Seed Oil
(Skin Conditioning, Skin Conditioning Emollient) |
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Yeast Extract
(Skin Conditioning) |
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Saccharomyces Ferment Filtrate
(Humectant) |
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Saccharomyces Lysate Extract
(Humectant, Skin Conditioning) |
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Pisum Sativum Extract
(Skin Conditioning, Skin Protecting) |
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Adansonia Digitata Seed Oil
(Hair Conditioning, Skin Conditioning, Emollient) |
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Beta-Glucan
(Bulking Agent, Skin Conditioning) |
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Adansonia Digitata Fruit Extract
(Humectant, Skin Conditioning, Emollient) |
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Aloe Barbadensis Leaf Juice
(Skin Conditioning) |
Good for Sensitive Skin
|
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SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
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Pullulan
(Binding Agent, Film Forming, Binding) |
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Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling) |
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Oryza sativa bran oil
(Skin Conditioning, Skin Conditioning Emollient) |
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Glyceryl Oleate Citrate
(Emulsifying, Surfactant) |
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rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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Sodium Phytate
(Chelating Agent, Oral Care Agent) |
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PARFUM
(Fragrance, Perfuming) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Undecylenoyl Glycine
(Cleansing, Hair Conditioning, Surfactant) |
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Capryloyl Glycine
(Cleansing, Hair Conditioning, Surfactant) |
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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.
Ascorbyl Propyl Hyaluronate, Magnesium 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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