ITEC Aromatherapy Practice Exam 2025 – Complete Prep Guide

The recommended dilution ratio for topical use of essential oils typically falls within the range of 1-2%. This concentration is generally considered safe for most individuals and allows the beneficial properties of the essential oils to be effectively delivered through the skin without causing irritation.

A dilution of 1-2% ensures that the essential oil is sufficiently diluted in a carrier oil, which not only minimizes the risk of adverse reactions but also allows for more comfortable application. This is particularly important since some essential oils can be potent and may cause sensitization or skin irritation when used at higher concentrations, especially for individuals with sensitive skin.

While higher concentrations, such as 5-10%, might be appropriate for specific therapeutic purposes or in the hands of experienced practitioners, the 1-2% dilution is a safer, general guideline suitable for everyday use.