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Moumoujus

EUCALYPTUS SMITHII LEAF OIL.

Valuable CAS 91771-68-5 / PERFUMING

Eucalyptus Smithii Leaf Oil is a naturally derived essential oil recognized for its multi-functional properties in skincare. It delivers anti-inflammatory and antimicrobial benefits, while also imparting a refreshing, cooling sensation to the skin. This ingredient is utilized to soothe irritation, reduce redness, and combat microbial concerns, contributing to overall skin health.

Summary

antimicrobial/antibacterial anti-inflammatory fragrance/essential oil cooling analgesic

Science

Mechanism of Action

This botanical oil exerts its effects through several mechanisms, primarily exhibiting anti-inflammatory, antimicrobial (antiseptic, antibacterial, antiviral), cooling, and analgesic actions on the skin. It works to calm inflamed tissues, reduce visible redness, and prevent infections by inhibiting the proliferation of various microbes. The combined analgesic and cooling properties contribute to a soothing sensation, supporting the skin's natural healing processes.

Research

Clinical Evidence

Insufficient-data confidence
Effective range 0.00625–0.1%
Optimal

N/A

Key findings

  1. 01 Studies indicate antifungal activity at concentrations ranging from 0.00625% to greater than 0.1% (62.5μg/mL to >1,000μg/mL) against common dermatophytes including Microsporum canis, Microsporum gypseum, Trichophyton mentagrophytes, and Trichophyton rubrum. The oil tested contained 72.2% 1,8-cineole. It is important to note these concentrations specifically relate to antifungal efficacy and do not necessarily translate directly to general skincare benefits.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Eucalyptus essential oil has been recorded with a pH of 4.9 at 22°C, indicating a slightly acidic profile. For optimal stability, essential oils should be stored in a cool, dark environment.

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Sensitization risk Moderate

The CIR Expert Panel deems eucalyptus-derived ingredients safe in cosmetics when formulated to be non-sensitizing. Eucalyptus smithii, a primary source of eucalyptus essential oil (typically >70% eucalyptol), is generally mild. However, individuals with very sensitive skin may experience irritation, and direct undiluted application is not advised. Ingestion should be avoided without professional guidance, and it is contraindicated for individuals with epilepsy or high blood pressure.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Eucalyptus Smithii Leaf Oil is a valuable ingredient for its targeted antimicrobial, anti-inflammatory, and cooling properties, best utilized in carefully formulated products to mitigate potential sensitivity.

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