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Score legend
HOW WE DETERMINE SCORES LEARN MORE ABOUT EWG VERIFIED®
Product score: 02

Data Availability:

Limited

Act + Acre Stem Cell Scalp Serum

Act + Acre Stem Cell Scalp Serum

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CATEGORY

Hair Treatment/Serum

BRAND

Act + Acre

DATA LAST UPDATED

October 2024

Ingredient concerns

See how this product scores for common concerns.

  • LOW
    Cancer
  • MODERATE
    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: 01
GLYCERIN
Data Availability: Fair
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FUNCTION(S) denaturant, humectant, perfuming, solvent, fragrance ingredient, hair conditioning agent, oral care agent;oral health care drug, skin-conditioning agent - humectant, skin protectant, viscosity decreasing agent
CONCERNS • Use restrictions (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BUTYLENE GLYCOL
Data Availability: Fair
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FUNCTION(S) humectant, masking, skin conditioning, solvent, viscosity controlling, fragrance ingredient, skin-conditioning agent - miscellaneous, viscositydecreasing agent
CONCERNS • Irritation (skin, eyes, or lungs) (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
CAPRYLYL GLYCOL
Data Availability: Limited
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FUNCTION(S) emollient, hair conditioning, humectant, skin conditioning, hair conditioning agent, skin-conditioning agent - emollient
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Ingredient score: 01
CARBOMER
Data Availability: Fair
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FUNCTION(S) emulsion stabilising, gel forming, viscosity controlling, emulsion stabilizer, viscosity increasing agent - aqueous
CONCERNS • Irritation (skin, eyes, or lungs) (low)
• Contamination concerns (METHACRYLIC ACID, ACRYLIC ACID, and BENZENE)
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Ingredient score: 01
CITRIC ACID
Data Availability: Good
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FUNCTION(S) buffering, chelating, masking, chelating agent, fragrance ingredient, ph adjuster
CONCERNS • Use restrictions (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
ETHYLHEXYLGLYCERIN
Data Availability: Limited
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FUNCTION(S) skin conditioning, deodorant agent, skin-conditioning agent - miscellaneous
CONCERNS • Allergies/immunotoxicity (low)
• Non-reproductive organ system toxicity (moderate)
• Ecotoxicology (low)
• Irritation (skin, eyes, or lungs) (high)
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Ingredient score: 01
GLUCOSAMINE HCL
Data Availability: Limited
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FUNCTION(S) antistatic, hair conditioning, ph adjuster
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
GLYCERETH-26
Data Availability: Limited
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FUNCTION(S) humectant, solvent, viscosity controlling, skin-conditioning agent - humectant, viscosity decreasing agent
CONCERNS • Use restrictions (low)
• Irritation (skin, eyes, or lungs) (low)
• Contamination concerns (ETHYLENE OXIDE and 1,4-DIOXANE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
LECITHIN
Data Availability: Good
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FUNCTION(S) antistatic, emollient, emulsifying, skin conditioning, skin-conditioning agent - miscellaneous, surfactant - emulsifying agent
CONCERNS • Allergies/immunotoxicity (moderate)
• Enhanced skin absorption
• Use restrictions (low)
• Multiple, additive exposure sources (low)
• Contamination concerns (NITROSAMINES)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
PENTYLENE GLYCOL
Data Availability: Limited
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FUNCTION(S) skin conditioning, solvent
CONCERNS • Allergies/immunotoxicity (low)
• Enhanced skin absorption
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
PHENOXYETHANOL
Data Availability: Good
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FUNCTION(S) preservative, fragrance ingredient
CONCERNS • Allergies/immunotoxicity (low)
• Use restrictions (moderate)
• Non-reproductive organ system toxicity (moderate)
• Ecotoxicology (low)
• Irritation (skin, eyes, or lungs) (high)
• Occupational hazards (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
PROPANEDIOL
Data Availability: Fair
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FUNCTION(S) solvent, viscosity controlling, viscosity decreasing agent
CONCERNS • Cancer (low)
• Developmental/reproductive toxicity (low)
• Enhanced skin absorption
• Endocrine disruption (low)
• Irritation (skin, eyes, or lungs) (high)
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Ingredient score: 01
SODIUM HYALURONATE
Data Availability: Fair
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FUNCTION(S) humectant, skin conditioning, skin-conditioning agent - miscellaneous
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Ingredient score: 03
SODIUM HYDROXIDE
Data Availability: Good
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FUNCTION(S) buffering, denaturant, ph adjuster
CONCERNS • Use restrictions (high)
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
TETRASODIUM GLUTAMATE DIACETATE
Data Availability: Limited
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FUNCTION(S) chelating, chelating agent
CONCERNS • Cancer (low)
• Developmental/reproductive toxicity (low)
• Irritation (skin, eyes, or lungs) (low)
• Contamination concerns (ACETIC ACID, NITRILOTRI-, TRISODIUM SALT, MONOHYDRATE, NITRILOTRIACETIC ACID, and SODIUM GLYCOLATE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
XANTHAN GUM
Data Availability: Fair
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FUNCTION(S) binding, emulsifying, emulsion stabilising, gel forming, skin conditioning, surfactant, viscosity controlling, binder, emulsion stabilizer, skin-conditioning agent - miscellaneous, surfactant -emulsifying agent, viscosity increasing agent - aqueous
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Ingredient score: 01
WATER
Data Availability: Robust
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FUNCTION(S) solvent
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Ingredient score: 01
ALOE BARBADENSIS (ALOE VERA) LEAF JUICE
Data Availability: Good
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CONCERNS • Use restrictions (low)
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Ingredient score: 01
BAMBUSA ARUNDINACEA (BAMBOO) STEM EXTRACT
Data Availability: Fair
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FUNCTION(S) skin conditioning, not reported
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Ingredient score: 01
COLLAGEN
Data Availability: Fair
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FUNCTION(S) skin conditioning, hair conditioning agent, skin-conditioning agent - miscellaneous
CONCERNS • Non-reproductive organ system toxicity (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
LEUCONOSTOC/ RADISH ROOT FERMENT FILTRATE
Data Availability: None
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FUNCTION(S) antidandruff, antimicrobial
CONCERNS • Contamination concerns (Didecyldimethylammonium chloride)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
MALUS DOMESTICA FRUIT CELL CULTURE EXTRACT
Data Availability: Fair
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CONCERNS • Allergies/immunotoxicity (low)
• Use restrictions (low)
• Irritation (skin, eyes, or lungs) (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
PISUM SATIVUM (PEA) EXTRACT
Data Availability: Fair
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FUNCTION(S) skin conditioning, skin protecting, skin-conditioning agent - miscellaneous, skin protectant
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Ingredient score: 01
QUERCUS PETRAEA FRUIT EXTRACT
Data Availability: None
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LEARN MORE ABOUT THIS INGREDIENT

Ingredients from packaging:

Water (Aqua), Glycerin, Butylene Glycol, Aloe Barbadensis Leaf Juice (ALOE), Bambusa Vulgaris Leaf/Stem Extract (BAMBOO), Caprylyl Glycol, Carbomer, Citric Acid, Collagen, Ethylhexylglycerin, Glucosamine Hcl, Glycereth-26, Lecithin, Leuconostoc/Radish Root Ferment Filtrate, Malus Domestica Fruit Cell Culture Extract (APPLE), Pentylene Glycol, Phenoxyethanol, Pisum Sativum (Pea) Extract (PEA), Propanediol, Quercus Petraea Fruit Extract (OAK), Sodium Hyaluronate, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Xanthan Gum

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.


Unknown

Leading international certifiers PETA and Leaping Bunny have no information concerning this company’s use of animal testing.

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
WEIGHT-OF-EVIDENCE APPROACH

A product’s hazard score is not an average of the ingredients’ hazard scores. It is calculated using a weight-of-evidence approach that factors in all of the hazards or health impacts associated with the ingredients.

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
NONE

Ingredients have not been assessed.

LIMITED-FAIR

There is only a modest volume of research.

GOOD-ROBUST

Ingredients have been studied extensively.

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