Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED™

Data: Limited

Melaleuca Alternifolia (Tea Tree) Leaf Oil

Other Concerns

Enhanced skin absorption, Endocrine disruption (low), Non-reproductive organ system toxicity (moderate), and Irritation (skin, eyes, or lungs) (moderate)

SYNONYMS

MELALEUCA ALTERNIFOLIA (TEA TREE) ESSENTIAL OIL, MELALEUCA ALTERNIFOLIA (TEA TREE) LEAF OIL, MELALEUCA ALTERNIFOLIA (TEA TREE) OIL, MELALEUCA ALTERNIFOLIA ESSENTIAL OIL, MELALEUCA ALTERNIFOLIA LEAF OIL, OILS, TEA TREE, OILS, TEATREE, TEA EXTRACT; TEA LEAF, ABSOLUTE; TEA OIL; TEA TREE OIL, TEA RESINOID, TEA TREE LEAF OIL, TEA TREE OIL, and TEA TREE OILS

This ingredient is distilled from the leaves of Tea Tree, Melaleuca alternifolia, a shrub native to New Zealand.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

Expand content Collapse content
shampoo128 products
conditioner97 products
facial cleanser90 products
hair treatment/serum69 products
mask65 products
toothpaste59 products
antiperspirant/deodorant58 products
facial moisturizer/treatment56 products
moisturizer49 products
bar soap42 products
toners/astringents42 products
serums & essences41 products
exfoliant/scrub36 products
body wash/cleanser36 products
foundation25 products
foot moisturizer21 products
recreational sunscreen21 products
mouthwash18 products
beard oil18 products
liquid hand soap15 products
concealer15 products
foot cleansing11 products
hand sanitizer11 products
beard care11 products
body oil9 products
foot odor control9 products
after shave9 products
hair styling aide9 products
bath oil/salts/soak8 products
nail treatment8 products
after sun product6 products
lip balm6 products
diaper cream6 products
hand cream6 products
muscle/joint soreness5 products
tooth whitening5 products
antiperspirant/deodorant (men's)5 products
hair-loss treatment5 products
damaged skin treatment5 products
daily use with SPF5 products
styling gel/lotion4 products
hair spray4 products
baby wipes4 products
lip gloss4 products
beard cleanser4 products
pore strips3 products
shaving cream3 products
shaving cream (men's)3 products
bubble bath3 products
detangler3 products
body spray3 products
3 products
baby toothpaste3 products
sunless tanning2 products
makeup remover2 products
cuticle treatment2 products
baby shampoo2 products
baby soap2 products
baby sunscreen2 products
body firming lotion2 products
setting powder/spray2 products
makeup primer2 products
anti-aging1 products
around-eye cream1 products
baby lotion1 products
hair removal waxes1 products
fragrance for women1 products
vapor rubs1 products
hair color and bleaching1 products
hair relaxer1 products
BB cream1 products
lip balm with SPF1 products
eye shadow1 products
styling mousse/foam1 products

Enhanced skin absorption

Expand content Collapse content
CONCERN REFERENCE
Penetration enhancerOpen scientific literature

Allergies/immunotoxicity

Expand content Collapse content
CONCERN REFERENCE
Known human any toxicant or allergenOpen scientific literature
Limited evidence of any toxicity or allergiesOpen scientific literature
Limited evidence of any toxicity or allergiesOpen scientific literature

Organ system toxicity (non-reproductive)

Expand content Collapse content
CONCERN REFERENCE
Limited evidence of any toxicityOpen scientific literature
Classified as toxic or harmful.Open scientific literature
Classified as not expected to be potentially toxic or harmfulEnvironment Canada Domestic Substance List

Irritation (skin, eyes, or lungs)

Expand content Collapse content
CONCERN REFERENCE
Limited evidence of any irritationOpen scientific literature
Limited evidence of any irritationOpen scientific literature
Limited evidence of any irritationOpen scientific literature

Developmental/reproductive toxicity

Expand content Collapse content
CONCERN REFERENCE
One or more animal studies show any effects at low dosesOpen scientific literature

Endocrine disruption

Expand content Collapse content
CONCERN REFERENCE
Limited evidence of any disruptionOpen scientific literature

Ecotoxicology

Expand content Collapse content
CONCERN REFERENCE
Wildlife and environmental toxicityOpen scientific literature
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Multiple, additive exposure sources

Expand content Collapse content
CONCERN REFERENCE
Designated as safe for general or specific, limited use in foodFDA Everything Added to Food

Data gaps

Expand content Collapse content
CONCERN REFERENCE
570 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed
  • Open scientific/peer reviewed literature
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • FDA (U.S. Food and Drug Administration). 2008. EAFUS [Everything Added to Food]: A Food Additive Database. FDA Office of Food Safety and Applied Nutrition.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.

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

Can’t find your product?

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

BUILD YOUR OWN REPORT

EWG research
on the go

Find personal care, cleaning, and food products on the EWG Healthy Living app.

DOWNLOAD THE APP