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Product score: 04

Data Availability:

Limited

Nioxin Scalp & Hair Treatment System 6

Nioxin Scalp & Hair Treatment System 6

WHERE TO BUY

CATEGORY

Hair Loss Treatment

BRAND

Nioxin

DATA LAST UPDATED

May 2022

Ingredient concerns

See how this product scores for common concerns.

  • LOW
    Cancer
  • HIGH
    Allergies & Immunotoxicity
  • LOW
    Developmental and Reproductive Toxicity
  • HIGH
    Use Restrictions

Ingredient scores

Ingredients are scored based on their formulation and concentration in this product. Click on an ingredient for more information.

Ingredient score: 05
BENZYL ALCOHOL
Data Availability: Fair
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FUNCTION(S) external analgesic, fragrance ingredient, oral health care drug, preservative, solvent;viscosity decreasing agent, masking, solvent
CONCERNS • Allergies/immunotoxicity (high)
• Use restrictions (moderate)
• Non-reproductive organ system toxicity (moderate)
• Occupational hazards (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 05
COCAMIDOPROPYL BETAINE
Data Availability: Good
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FUNCTION(S) antistatic agent, hair conditioning agent, skin-conditioning agent - miscellaneous;surfactant - cleansing agent, surfactant - foam booster, viscosity increasing agent - aqueous, antistatic, cleansing, foam boosting, hair conditioning, surfactant, viscosity controlling
CONCERNS • Allergies/immunotoxicity (moderate)
• Use restrictions (high)
• Contamination concerns (COCAMIDOPROPYL DIMETHYLAMINE, 3-DIMETHYLAMINOPROPYLAMINE, and NITROSAMINES)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 05
CITRUS LIMON (LEMON) PEEL EXTRACT
Data Availability: Limited
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FUNCTION(S) not reported
CONCERNS • Allergies/immunotoxicity (low)
• Enhanced skin absorption
• Use restrictions (high)
• Non-reproductive organ system toxicity (low)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
SODIUM HYDROXIDE
Data Availability: Fair
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FUNCTION(S) denaturant, ph adjuster, buffering
CONCERNS • Use restrictions (high)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (low)
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Ingredient score: 04
PHENOXYETHANOL
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, preservative
CONCERNS • Allergies/immunotoxicity (low)
• Use restrictions (moderate)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (high)
• Occupational hazards (high)
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Ingredient score: 04
ACETAMIDE MEA
Data Availability: Limited
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FUNCTION(S) hair conditioning agent, skin-conditioning agent - humectant, surfactant - foam booster;viscosity increasing agent - aqueous, antistatic, foam boosting, hair conditioning, humectant, skin conditioning, surfactant, viscosity controlling
CONCERNS • Use restrictions (high)
• Contamination concerns (ACETAMIDE MEA)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
MENTHA PIPERITA (PEPPERMINT) OIL
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, skin-conditioning agent - miscellaneous
CONCERNS • Allergies/immunotoxicity (high)
• Enhanced skin absorption
• Use restrictions (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 04
CITRUS AURANTIUM DULCIS (ORANGE) FRUIT EXTRACT
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, skin-conditioning agent - miscellaneous, masking, skin conditioning
CONCERNS • Allergies/immunotoxicity (low)
• Enhanced skin absorption
• Use restrictions (moderate)
• Non-reproductive organ system toxicity (low)
• Multiple, additive exposure sources (low)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
ENSULIZOLE
Appeared as: PHENYLBENZIMIDAZOLE SULFONIC ACID
Data Availability: Fair
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FUNCTION(S) sunscreen agent, ultraviolet light absorber, uv absorber, uv filter
CONCERNS • Cancer (low)
• Use restrictions (moderate)
• Biochemical or cellular level changes (high)
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Ingredient score: 03
POLYSORBATE-20
Data Availability: Fair
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FUNCTION(S) fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizing agent
CONCERNS • Non-reproductive organ system toxicity (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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Ingredient score: 03
SULISOBENZONE
Appeared as: BENZOPHENONE-4
Data Availability: Fair
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FUNCTION(S) sunscreen agent, ultraviolet light absorber, uv absorber, uv filter
CONCERNS • Allergies/immunotoxicity (moderate)
• Enhanced skin absorption
• Endocrine disruption (low)
• Non-reproductive organ system toxicity (low)
• Irritation (skin, eyes, or lungs) (moderate)
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Ingredient score: 03
SODIUM BENZOATE
Data Availability: Fair
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FUNCTION(S) fragrance ingredient, preservative, anticorrosive, masking
CONCERNS • Use restrictions (moderate)
• Non-reproductive organ system toxicity (low)
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Ingredient score: 03
PEG-12 DIMETHICONE
Data Availability: Limited
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FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, hair conditioning, skin conditioning
CONCERNS • Non-reproductive organ system toxicity (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
PROPYLENE GLYCOL
Data Availability: Fair
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FUNCTION(S) fragrance ingredient, humectant, skin-conditioning agent - humectant, skin-conditioningagent - miscellaneous, solvent, viscosity decreasing agent, skin conditioning, viscosity controlling
CONCERNS • Allergies/immunotoxicity (moderate)
• Enhanced skin absorption
• Use restrictions (low)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
POLYSORBATE-60
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizing agent, emulsifying
CONCERNS • Non-reproductive organ system toxicity (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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Ingredient score: 03
POLYSORBATE-80
Data Availability: Fair
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FUNCTION(S) denaturant, fragrance ingredient, surfactant - emulsifying agent, surfactant - solubilizingagent, emulsifying, surfactant
CONCERNS • Non-reproductive organ system toxicity (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
PEG-23M
Data Availability: Limited
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FUNCTION(S) binder, emulsion stabilizer, viscosity increasing agent - aqueous
CONCERNS • Non-reproductive organ system toxicity (moderate)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
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Ingredient score: 03
TOCOPHERYL ACETATE
Data Availability: Fair
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FUNCTION(S) antioxidant, skin-conditioning agent - miscellaneous, skin conditioning
CONCERNS • Cancer (low)
• Allergies/immunotoxicity (moderate)
• Contamination concerns (HYDROQUINONE)
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Ingredient score: 02
CITRIC ACID
Data Availability: Good
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FUNCTION(S) chelating agent, fragrance ingredient, ph adjuster, buffering, chelating, masking
CONCERNS • Use restrictions (moderate)
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Ingredient score: 02
TETRASODIUM EDTA
Data Availability: Fair
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FUNCTION(S) chelating agent, chelating
CONCERNS • Enhanced skin absorption
• Non-reproductive organ system toxicity (moderate)
• Occupational hazards (high)
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Ingredient score: 02
CAMELLIA SINENSIS (GREEN TEA) LEAF EXTRACT
Appeared as: CAMELLIA SINENSIS LEAF EXTRACT
Data Availability: Fair
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FUNCTION(S) antioxidant, fragrance ingredient, oral care agent, skin-conditioning agent -miscellaneous, ultraviolet light absorber, antimicrobial, astringent, emollient, humectant, masking, oral care, skin conditioning, skin protecting, tonic, uv absorber
CONCERNS • Use restrictions (moderate)
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Ingredient score: 02
LECITHIN
Data Availability: Good
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FUNCTION(S) skin-conditioning agent - miscellaneous, surfactant - emulsifying agent, antistatic, emollient, emulsifying, skin conditioning
CONCERNS • Developmental/reproductive toxicity (low)
• Allergies/immunotoxicity (low)
• Multiple, additive exposure sources (low)
• Contamination concerns (NITROSAMINES)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
POTASSIUM SORBATE
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, preservative
CONCERNS • Allergies/immunotoxicity (moderate)
• Non-reproductive organ system toxicity (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
WATER
Appeared as: WATER/EAU
Data Availability: Robust
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FUNCTION(S) solvent
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Ingredient score: 01
NIACINAMIDE
Data Availability: Fair
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FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, smoothing
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Ingredient score: 01
CAFFEINE
Data Availability: Good
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FUNCTION(S) fragrance ingredient, skin-conditioning agent - miscellaneous, masking, skin conditioning
CONCERNS • Persistence and bioaccumulation (moderate)
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Ingredient score: 01
ISOPROPYL C12-15 PARETH-9 CARBOXYLATE
Data Availability: None
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FUNCTION(S) skin-conditioning agent - emollient, emollient, skin conditioning
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Ingredient score: 01
METHYL NICOTINATE
Data Availability: Limited
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FUNCTION(S) external analgesic, fragrance ingredient, skin-conditioning agent - miscellaneous, soothing, tonic
CONCERNS • Multiple, additive exposure sources (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
SODIUM CHLORIDE
Data Availability: Robust
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FUNCTION(S) flavoring agent, oral care agent, viscosity increasing agent - aqueous
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
MENTHA ARVENSIS (WILD MINT) OIL
Appeared as: MENTHA ARVENSIS LEAF OIL
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, masking
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
MENTHOL
Data Availability: Fair
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FUNCTION(S) denaturant, external analgesic, flavoring agent, fragrance ingredient, oral health caredrug, masking, refreshing, soothing
CONCERNS • Multiple, additive exposure sources (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
HYDROLYZED SILK
Data Availability: Limited
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FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, antistatic, hair conditioning, humectant, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BIOTIN
Data Availability: Fair
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FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, antiseborrhoeic, hair conditioning, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
ALEURITES MOLUCCANA (KUKUI) SEED OIL
Appeared as: ALEURITES MOLUCCANUS SEED OIL
Data Availability: Limited
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FUNCTION(S) skin-conditioning agent - miscellaneous, skin-conditioning agent - occlusive, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
FOENICULUM VULGARE (FENNEL) FRUIT EXTRACT
Data Availability: Limited
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FUNCTION(S) fragrance ingredient, skin-conditioning agent - miscellaneous, perfuming
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
SILICA, AMORPHOUS
Appeared as: SILICA
Data Availability: Good
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FUNCTION(S) abrasive, absorbent, anticaking agent, bulking agent, opacifying agent, suspending agent- nonsurfactant, anticaking, opacifying
CONCERNS • Persistence and bioaccumulation (high)
• Non-reproductive organ system toxicity (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
YEAST EXTRACT
Appeared as: YEAST EXTRACT/EXTRAIT DE LEVURE
Data Availability: Fair
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FUNCTION(S) not reported, skin conditioning
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Ingredient score: 01
ACER SACCHARUM (SUGAR MAPLE) EXTRACT
Data Availability: Limited
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FUNCTION(S) not reported, keratolytic
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
SACCHARUM OFFICINARUM (SUGAR CANE) EXTRACT
Appeared as: SACCHARUM OFFICINARUM EXTRACT
Data Availability: Limited
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FUNCTION(S) skin-conditioning agent - miscellaneous, moisturising, skin conditioning
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Ingredient score: 01
VACCINIUM MYRTILLUS (BILBERRY) EXTRACT
Appeared as: VACCINIUM MYRTILLUS LEAF EXTRACT
Data Availability: Limited
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FUNCTION(S) skin-conditioning agent - miscellaneous, astringent, refreshing, skin conditioning, tonic
LEARN MORE ABOUT THIS INGREDIENT

Ingredients from packaging:

WATER/EAU, NIACINAMIDE, PHENYLBENZIMIDAZOLE SULFONIC ACID, POLYSORBATE 20, CAFFEINE, BENZOPHENONE-4, SODIUM HYDROXIDE, BENZYL ALCOHOL, SODIUM BENZOATE, PHENOXYETHANOL, PEG-12 DIMETHICONE, CITRIC ACID, COCAMIDOPROPYL BETAINE, ACETAMIDE MEA, ISOPROPYL C12-15-PARETH-9 CARBOXYLATE, TETRASODIUM EDTA, PROPYLENE GLYCOL, METHYL NICOTINATE, SODIUM CHLORIDE, POLYSORBATE 60, POLYSORBATE 80, MENTHA PIPERITA (PEPPERMINT) OIL, MENTHA ARVENSIS LEAF OIL, MENTHOL, PEG-23M, CAMELLIA SINENSIS LEAF EXTRACT, HYDROLYZED SILK, BIOTIN, LECITHIN, TOCOPHERYL ACETATE, ALEURITES MOLUCCANUS SEED OIL, FOENICULUM VULGARE (FENNEL) FRUIT EXTRACT, SILICA, YEAST EXTRACT/EXTRAIT DE LEVURE, ACER SACCHARUM (SUGAR MAPLE) EXTRACT, CITRUS LIMON (LEMON) PEEL EXTRACT, SACCHARUM OFFICINARUM EXTRACT, VACCINIUM MYRTILLUS LEAF EXTRACT, CITRUS AURANTIUM DULCIS (ORANGE) FRUIT EXTRACT, POTASSIUM SORBATE.

Product's animal testing policies

Some cosmetics companies have taken People for the Ethical Treatment of Animals and Leaping Bunny animal-testing pledges. For consumers who are concerned about companies’ policies on animal testing, Skin Deep reports this information.


PETA Cruelty-free Companies

Companies that join the "Caring Consumer" program of People for the Ethical Treatment of Animals, a leading international animal rights advocacy organization, attest that "neither they nor their ingredient suppliers conduct or commission any animal tests on ingredients, formulations or finished products, and that they pledge not to do so in the future."

LEARN MORE ON PETA.ORG

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.

HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG VERIFIED™ mark means a product meets EWG’s strictest criteria for transparency and health.

Score legend

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST
Low Availability
Moderate Availability
High Availability

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