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MELALEUCA LEUCADENDRON CAJAPUT OIL.

Avoid CAS 85480-37-1 / FRAGRANCE

Melaleuca Leucadendron Cajaput Oil is an essential oil primarily derived from the cajeput tree, characterized by a significant concentration of 1,8-Cineole. This potent compound endows the oil with distinct antimicrobial, antiseptic, and antioxidant properties, often explored for its potential in clarifying oily skin and addressing minor dermal concerns.

Summary

Antimicrobial/Antibacterial Antiviral Antiseptic Anti-inflammatory Antioxidant Penetration Enhancer Perfuming Solvent

Science

Mechanism of Action

The efficacy of Cajaput oil is largely attributed to its primary constituent, 1,8-Cineole (also known as cineol or eucalyptol), which typically comprises 45% to 76% of the oil. This compound acts as a broad-spectrum antimicrobial, demonstrating activity against various gram-positive and gram-negative bacteria, yeast, molds, and Demodex mites, thereby aiding in infection prevention and supporting skin regeneration. Additionally, 1,8-Cineole possesses antiseptic and anti-inflammatory properties that contribute to skin cleanliness and can mitigate discomfort beneath the skin through a mild warming sensation. It also functions as a penetration enhancer and exhibits robust antioxidant capabilities, with ABTS radical scavenging activity ranging from 44.1% to 74.5%. For individuals with oily skin, Cajaput oil may help regulate excessive sebum secretion.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–2.5%
Optimal

N/A

Key findings

  1. 01 Demonstrated antibacterial qualities in a 2022 study, which could help prevent infection.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The ingredient is stable and non-reactive under typical conditions of use, storage, and transport. It is critical to avoid temperatures exceeding its flash point and to store it in a cool, well-ventilated area with containers tightly sealed.

Conflicts

  • Strong oxidizing agents
  • Direct application to skin without dilution
  • Use on or around infants and young children
  • Inhalation directly from the bottle

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

While generally considered 'POSSIBLY SAFE' when properly diluted and applied to unbroken skin, its potent nature necessitates meticulous dilution with a carrier oil to prevent potential irritation. Patch testing is strongly recommended, especially for individuals with sensitive skin, as its primary constituent, 1,8-Cineole, exhibits local irritant properties and can induce edema. Undiluted or excessive use may lead to skin and mucous membrane irritation, and potentially headaches. Due to its high 1,8-Cineole content, it is strictly contraindicated for use on or around infants and young children, as it may cause respiratory and/or central nervous system problems. The FDA does not monitor or regulate the purity or quality of essential oils. Consultation with a healthcare professional is advised before use, particularly as Cajaput oil may interact with certain medications by slowing their breakdown in the liver. It is incompatible with strong oxidizing agents.

Your Skin

Skin Compatibility

No Normal
No Dry
Yes Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Despite its demonstrated antimicrobial and antioxidant properties, Melaleuca Leucadendron Cajaput Oil's high irritancy potential, specific contraindications for sensitive skin and children, and lack of comprehensive safety review by CIR render it unsuitable for precision skincare formulations.

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