International Therapy Examination Council (ITEC) Aromatherapy 2025 – 400 Free Practice Questions to Pass the Exam

Tea tree oil and eucalyptus oil are particularly noted for their antibacterial properties, making them highly effective in both aromatherapy and various antiseptic applications.

Tea tree oil, derived from the leaves of the Melaleuca alternifolia plant, has well-documented antimicrobial properties. It can inhibit the growth of bacteria, viruses, and fungi, which is why it is frequently used in topical antiseptic formulations and is often included in skincare products designed to treat acne and other skin infections.

Eucalyptus oil, extracted from the leaves of the Eucalyptus tree, also exhibits strong antibacterial actions. It is known for its ability to combat respiratory pathogens and is commonly used in inhalants and chest rubs for bronchial issues. Additionally, eucalyptus oil is often used in cleaning products due to its germicidal qualities.

The other options include oils that have beneficial properties but are not as widely recognized for their antibacterial effects as tea tree and eucalyptus oil. Lavender and chamomile oils are more celebrated for their calming and soothing effects, while peppermint oil is often used for digestive issues and has invigorating effects. Lemon oil has antibacterial qualities to some degree, but the combination of tea tree and eucalyptus oils is particularly effective for infection prevention and treatment.