Synephrine hydrochloride is commonly used in dietary supplements aimed at weight loss and fat burning due to its ability to stimulate metabolism and increase energy expenditure. It is often included in thermogenic formulas to enhance the body’s ability to burn calories and reduce fat storage. Additionally, it is utilized as a decongestant in some over-the-counter medications to relieve nasal congestion by constricting blood vessels in the nasal passages. In sports nutrition, it is sometimes included in pre-workout supplements to improve focus, energy, and performance. Its mild stimulant properties make it a popular alternative to stronger stimulants like ephedrine. However, its use should be approached with caution, especially for individuals with cardiovascular conditions, due to its potential to increase heart rate and blood pressure.