Tea Tree Essential Oil

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Technical Specification Sheet

Tea Tree Essential Oil

INCI Name: Melaleuca Alternifolia Leaf Oil
Common Name: Tea Tree Essential Oil
Botanical Source: Melaleuca alternifolia
Plant Part Used: Leaves and Twigs
Extraction Method: Steam Distillation
CAS Number: 68647-73-4
EC Number: 271-781-5
Grade: Cosmetic Grade
Packaging Size: 20g

1. Material Overview

Tea Tree Essential Oil is obtained by steam distillation of the leaves and twigs of Melaleuca alternifolia.

This cosmetic-grade raw material is supplied exclusively for further incorporation into cosmetic and personal care formulations. Its composition is dominated by terpinen-4-ol and related terpenes, providing the signature sharp, fresh, and herbaceous aroma.

Controlled inclusion levels are recommended due to its high volatility and potent aromatic character.

2. Physical & Organoleptic Characteristics

• Appearance: Clear to pale yellow liquid
• Color: Colorless to light yellow
• Odor: Fresh, sharp, medicinal, herbaceous
• Solubility: Oil soluble
• Volatility: High

Natural variation in color and aroma may occur depending on origin, leaf maturity, and distillation parameters.

3. Composition & Functional Attributes

Tea Tree Essential Oil typically contains:

• Terpinen-4-ol
• Gamma-terpinene
• Alpha-terpinene
• 1,8-Cineole (low in cosmetic-grade oil)
• Alpha-pinene

Composition may vary depending on region, harvest time, and distillation methods.

Functional Contribution in Formulations

Within cosmetic systems, Tea Tree Essential Oil is selected for its ability to:

• Provide a sharp top-note in fragrance compositions
• Contribute herbal, clean, and green aroma profiles
• Complement citrus, woody, and floral accords
• Integrate into emulsions, anhydrous systems, and cleansing bases as a fragrance component

Inclusion levels must comply with IFRA standards and allergen declaration requirements. All safety and performance parameters must be validated within the final cosmetic formulation.

4. Suitable Formulation Applications

• Fragrance components in creams and emulsions
• Hair and scalp formulations
• Soap and cleansing systems
• Anhydrous aromatic blends
• Botanical-focused cosmetic systems

Use levels must be determined through regulatory review, stability testing, and safety assessment.

5. Storage & Stability

• Store in a cool, dry place
• Protect from light and heat
• Keep container tightly sealed

Exposure to heat, air, or light may affect composition and aroma.

6. Handling & Manufacturing Considerations

This material should be handled in accordance with Good Manufacturing Practice (GMP).

• Dilution prior to incorporation is recommended
• Allergen labeling obligations must be assessed
• IFRA compliance and maximum usage limits must be observed

Compatibility testing, stability assessment, and final cosmetic safety evaluation remain the responsibility of the formulator or Responsible Person.

7. Regulatory Positioning

This product is supplied strictly as a raw cosmetic ingredient for further formulation.

It is not a finished cosmetic product and is not marketed for direct consumer application.

The purchaser assumes full responsibility for compliance with Regulation (EC) No 1223/2009, IFRA standards, allergen declaration requirements, CPSR preparation, PIF documentation, labeling, stability testing, and notification procedures.

8. Interesting Facts About the Raw Material

• Tea Tree oil is native to Australia and has been harvested traditionally for centuries.
• Terpinen-4-ol is the primary contributor to its distinctive aroma.
• Distillation of fresh leaves preserves its herbal and medicinal profile.
• Its aromatic profile is often used as a “clean” top note in cosmetic fragrance design.
• Chemotypic variation exists, but cosmetic-grade oils typically minimize 1,8-cineole to reduce sharpness.