No.5+ Glutathione C Facial Spa Cleanser
The Numbuzin No.5+ Glutathione C Facial Spa Cleanser is a cleanser. Our analysis of its 39 ingredients (24 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
The Numbuzin No.5+ Glutathione C Facial Spa Cleanser is a cleanser. Our analysis of its 39 ingredients (24 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
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Cetyl Ethylhexanoate
(Skin Conditioning, Emollient) |
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Sorbeth-30 Tetraoleate
(Emulsifying, Surfactant) |
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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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Triethylhexanoin
(Fragrance, Hair Conditioning, Antistatic Agent, Emollient, Masking, Refatting, Skin Conditioning, Solvent) |
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Polyglyceryl-10 Diisostearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling) |
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Diisostearyl Malate
(Skin Conditioning, Emollient, Surfactant) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient) |
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Glyceryl Behenate/Eicosadioate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning) |
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SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
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Stearoyl Inulin
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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lavandula angustifolia oil
(Fragrance, Tonic) |
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Citrus Limon Peel Oil
(Fragrance, Perfuming, Skin Conditioning) |
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Hippophae Rhamnoides Fruit Oil
(Skin Protecting) |
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Polyglyceryl-10 Behenate/Eicosadioate
(Emulsifying, Skin Conditioning) |
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Citrus Nobilis Peel Oil
(Fragrance, Skin Conditioning, Tonic) |
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Cedrus Atlantica Wood Oil
(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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citrus aurantium dulcis peel oil
(Fragrance, Skin Conditioning) |
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Rosmarinus Officinalis Leaf Oil
(Fragrance, Skin Conditioning) |
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Water
(Solvent) |
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Candida Bombicola/Glucose/Methyl Rapeseedate Ferment
(Antiacne Agent, Antimicrobial Agent, Cosmetic Biocide, Deodorant, Surfactant Cleansing Agent, Antiseborrhoeic, Skin Protecting) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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1,2-Hexanediol
(Solvent) |
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ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
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Hydroxypropyl Cyclodextrin
(Chelating Agent, Emulsion Stabilising, Masking, Skin Conditioning) |
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Glutathione
(Fragrance, Reducing) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Pantothenic Acid
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
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Linolenic Acid
(Fragrance, Hair Conditioning, Skin Conditioning, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Linolenic Acid., Antistatic Agent, Emollient, Perfuming) |
Fungal Acne Trigger
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Biotin
(Hair Conditioning, Skin Conditioning, Antiseborrhoeic) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Cyanocobalamin
(Skin Conditioning) |
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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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
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
Other products people analyze alongside this one.