First up, some regulations and insight into ingredient distribution in Australia. The Poisons Standard (SUSMP – Standard for the Uniform Scheduling of Medicines and Poisons)1 is the government legal document that classifies medicines and chemicals into different categories (Schedules) to regulate their availability and safety in Australia.
The Poisons Standard tells us that an ingredient like morphine, which is a strong pain reliever, is a controlled drug in Schedule 8 — which means there are restrictions on manufacturing, supply, distribution, possession and use to limit the abuse or misuse of this medicine. The Poisons Standard also governs the use of ingredients like Eucalyptus Oil.
When used in medicines for therapeutic use, Eucalyptus Oil is included in Schedule 6 which includes substances with the potential for harm, though this is mitigated through the use of packaging with warnings and label safety directions.
Azelaic acid is in the Poisons Standard (SUSMP)1 and may be included in both therapeutic and cosmetic products. If the product containing azelaic acid has a therapeutic function (like assisting with acne), it is a therapeutic product (also known as therapeutic good), and needs appropriate registration.
If the product containing azelaic acid only makes cosmetic claims, such as “help improve the appearance of your skin”, then it is a cosmetic product and can’t claim to provide a therapeutic benefit.