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HOW WE DETERMINE SCORES Learn more About EWG VERIFIED®

Data: Good

Isobutane

  • Products with this ingredient are allowed for use in EWG VERIFIED but must meet use restrictions and warnings based on EWG review of company data.
  • This ingredient's score is higher if used in product forms that are inhalable (e.g., sprays, powders) because of respiratory concerns. The score is lower if used in product forms that have lower risk of inhalation (e.g., solids, liquids)
  • This ingredient's score is higher if used in products that may not meet industry safety guidelines or U.S. and international government requirements and may have contamination concerns from toxic impurities. The score will be lower if used in products that do meet these safety guidelines and requirements and EWG’s contamination restrictions.

IMAGE SOURCE: PubChem

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Other Concerns

Use restrictions (high), Non-reproductive organ system toxicity (moderate), Multiple, additive exposure sources (low_moderate), Irritation (skin, eyes, or lungs) (moderate), and Contamination concerns (high)

SYNONYMS

● R-600A
● UNII-BXR49TP611
● BXR49TP611
● EINECS 200-857-2
● ISOBUTANE (NF)
● HSDB 608
● EPA PESTICIDE CHEMICAL CODE 097101
● CHEBI:30363
● (1R,5S,9R)-TERT-BUTYL 9-HYDROXY-3-OXA-7-AZABICYCLO[3.3.1]NONANE-7-CARBOXYLATE
● UNII-5K616HU99V COMPONENT NNPPMTNAJDCUHE-UHFFFAOYSA-N

Restricted - Unaccpetable

The score of this ingredient can vary from Restricted to Unacceptable based on the method of product consumption. For instance, when used in aerosol-based products, this ingredient may pose a risk to respiratory health, leading to a higher score

Click here for more information about ingredient scores

isobutane is a hydrocarbon gas; used as a propellant in aerosolized products.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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shaving cream207 products
bronzer/highlighter2 products
foundation122 products
makeup primer3 products
setting powder/spray7 products
styling mousse/foam161 products
shampoo319 products
styling gel/lotion7 products
shaving cream (men's)78 products
hair spray114 products
antiperspirant/deodorant (men's)85 products
body spray128 products
conditioner25 products
hair treatment/serum24 products
sunless tanning14 products
hair styling aid42 products
antiperspirant/deodorant184 products
Bath and Body Wipes1 products
hair color and bleaching55 products
hand sanitizer3 products
facial moisturizer/treatment16 products
after shave2 products
fragrance for men6 products
Preshave Preparations9 products
body wash/cleanser23 products
hair-loss treatment26 products
recreational sunscreen52 products
Dry Shampoo and Hair Powders40 products
body oil1 products
facial cleanser2 products
fragrance for women2 products
concealer39 products
glitter8 products
mask1 products
body powder1 products
moisturizer4 products
Under Eye Concealers1 products
baby sunscreen5 products
body firming lotion1 products
BB cream4 products
mouthwash1 products
eye shadow13 products
foot odor control1 products
beard care2 products
anti-aging2 products
bubble bath5 products
tanning oil2 products
nail glue1 products
baby powder1 products
Facial Sun Care2 products
nail treatment1 products
depilatory1 products
foot cleansing1 products

Contamination concerns

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Chemical
BUTADIENE

Miscellaneous

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CONCERN REFERENCE
Occupational hazards related to handlingEU GHS Hazard Labeling Codes

Multiple, additive exposure sources

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CONCERN REFERENCE
Designated as safe for general or specific, limited use in foodUS. Food and Drug Administration (FDA)
Designated as safe for general or specific, limited use in foodCosmetic Ingredient Review (CIR)
Used in food or as an additive with limited or no toxicity information availableUS. Food and Drug Administration (FDA)

Use restrictions

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CONCERN REFERENCE
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - Use is restricted in Canadian cosmeticsHealth Canada
Violation of government restrictions - Restricted in cosmetics; use, concentration, or manufacturing restrictions - anyEU Cosmetics Directive

Data gaps

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CONCERN REFERENCE
Risk assessment method deficiencies and data gaps - Maximum reported 'as used' concentration is basis of safety assessment by industry safety panel (Cosmetic Ingredient Review, CIR) - implicit safe concentration limit in productCosmetic Ingredient Review (CIR)

Allergies/immunotoxicity

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CONCERN REFERENCE
Human any toxicant or allergen - strong evidenceCosmetic Ingredient Review (CIR)
Human skin toxicant or allergen - strong evidenceCosmetic Ingredient Review (CIR)

Informational

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CONCERN REFERENCE
Industry or government recommendations for safe use: restrictions on concentration, impurities, product types, or manufacturing methods - anyCosmetic Ingredient Review (CIR)

Irritation (skin, eyes, or lungs)

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CONCERN REFERENCE
Human any irritant - strong evidenceCosmetic Ingredient Review (CIR)

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Classified as expected to be toxic or harmfulEnvironment Canada
Classified as a high human health priorityEnvironment Canada

Persistence and bioaccumulation

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CONCERN REFERENCE
Not suspected to be bioaccumulativeEnvironment Canada

Ecotoxicology

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CONCERN REFERENCE
Not suspected to be an environmental toxinEnvironment Canada
  • EU GHS Hazard Labeling Codes
  • US. Food and Drug Administration (FDA)
  • Cosmetic Ingredient Review (CIR)
  • Health Canada
  • EU Cosmetics Directive
  • Environment Canada

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.

Can’t find your product?

Enter the ingredients in EWG’s Build Your Own Report tool to get an approximate score for that product.

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