One of the most common treatment methods for solving psychological and mental problems in ancient medicine has been the use of aroma therapy or treatment with different aromas, which is now known as aromatherapy. Many reputable perfume and cologne factories around the world take help from these treatment recommendations to produce perfumes and market their products. The sense of smell is the strongest sense of us humans, and scents can have short-term and long-term positive and negative effects on the body and mind. For this reason, in this article, we introduce the most common pleasant scents that affect people’s mental health.