Tesofensine peptide works by reducing appetite while simultaneously increasing resting energy expenditure and fat oxidation. It also modulates the action of dopamine which influences a particular section of the brain to replicate the pleasure sensation of consuming food.
 
There are many benefits of getting older—wisdom, maturity, and an appreciation for the finer things in life being among them; unfortunately, there are also a few unwelcome side effects of aging, including muscle loss and weight gain. Tesofensine inhibits the dopamine transporter proteins. As a result, it stimulates the dopamine receptor for a longer duration, and as a result, the brain keeps producing the feeling of satisfaction.