System 2 Scalp + Hair Conditioner
The Nioxin System 2 Scalp + Hair Conditioner is a misc. Our analysis of its 34 ingredients (20 low-risk) rates it Excellent (92/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
The Nioxin System 2 Scalp + Hair Conditioner is a misc. Our analysis of its 34 ingredients (20 low-risk) rates it Excellent (92/100). Based on its ingredients, it looks well-suited to oily / acne-prone 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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Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling) |
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Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative) |
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Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling) |
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Isopropyl Alcohol
(Antifoaming Agent, Fragrance, Solvent, Viscosity Decreasing Agent, Perfuming, Viscosity Controlling) |
Bad for Sensitive Skin
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
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Mentha Arvensis Leaf Oil
(Masking) |
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Mentha Piperita Oil
(Fragrance, Perfuming, Refreshing, Tonic) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
|
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Quaternium-80
(Antistatic Agent, Hair Conditioning) |
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Methylparaben
(Fragrance, Preservative) |
Paraben
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Propylparaben
(Fragrance, Preservative, Perfuming) |
Paraben
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EDTA
(Chelating Agent) |
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
|
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
|
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Biotin
(Hair Conditioning, Skin Conditioning, Antiseborrhoeic) |
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Foeniculum Vulgare Fruit Extract
(Skin Conditioning, Skin Conditioning Emollient, Soothing, Tonic) |
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Acer saccharum extract
(Skin Conditioning) |
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citrus limon peel extract
(Skin Conditioning, Skin Conditioning Emollient, Skin Protecting, Tonic) |
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Saccharum Officinarum Extract
(Moisturising, Skin Conditioning) |
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Vaccinium Myrtillus Leaf Extract
(Astringent, Hair Conditioning, Nail Conditioning, Skin Conditioning) |
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Yeast Extract
(Skin Conditioning) |
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Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant) |
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Citrus Aurantium Dulcis Fruit Extract
(Fragrance, Skin Conditioning) |
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aleurites moluccanus seed oil
(Skin Conditioning) |
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Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding) |
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Potassium Sorbate
(Fragrance, Preservative) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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.
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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