Melaleuca Alternifolia Leaf Oil (Tea Tree Oil)

Synonyms: Melaleuca Alternifolia Leaf (Tea Tree) Oil

CAS Number: 68647-73-4

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79

80 89

90 100

Sources of exposure:

Personal care

Cleaning products and household care

Description:

Melaleuca Alternifolia Leaf Oil (Tea Tree Oil) is a complex essential oil derived from the leaves of the Melaleuca alternifolia plant and characterized by a strong, medicinal, camphoraceous scent. It is used in personal care and cleaning products for its antimicrobial properties and as a fragrance ingredient. Like many botanical ingredients, it contains naturally occurring constituents that can cause allergic reactions in sensitive individuals.

Health concerns:

Immunotoxicity & Allergens

May impact immune system function or cause allergic reactions.

Irritant

May cause skin, eye, or respiratory irritation.

Ecotoxicity

May be toxic to ecosystems and wildlife.

References

HOW MILLION MARKER SCORES CHEMICALS

Million Marker's Ingredient Hazard Scoring uses multiple chemical databases and a science-backed scoring system to compute hazard scores for thousands of chemicals found in consumer products and listed on ingredient labels.

We identified key chemicals based on a database compiling dozens of authoritative sources, screening tools, and QSAR models.

Hazard scores within 11 different health categories (carcinogens, endocrine disruptors, reproductive toxicants, developmental toxicants, genotoxicity, neurotoxicity, organ system toxicity, immunotoxicity, respiratory toxicity, skin/eye/respiratory irritants, and ecotoxicity).

They are weighted based on several factors, including strength of evidence for adverse impacts in humans, severity, and potential contamination.