Rapamycin is an immunosuppressant drug that has been shown to have potential as an anti-aging therapy. Rapamycin works by inhibiting the activity of a protein called mTOR, which plays a key role in regulating cell growth and metabolism. mTOR is activated by several factors, including growth factors, nutrient availability, and energy levels. Rapamycin blocks the activity of mTOR, which leads to a decrease in cell growth and a reduction in the formation of new blood vessels. This, in turn, leads to a reduction in inflammation and a slowing of the aging process. The drug is studied in animals mainly, and it has been shown to increase lifespan and improve healthspan in a variety of species, including mice, rats, and dogs. Studies in animals have found that rapamycin can improve cardiovascular health, protect against cancer, and slow the progression of age-related diseases such as Alzheimer’s and Parkinson’s disease. Rapamycin is also being studied as a potential therapy for age-related diseases in humans. While research is still ongoing, early studies have shown promising results, with rapamycin being found to improve cardiovascular health, reduce the risk of cancer, and slow the progression of age-related diseases. Studies with Rapamycin are in humans are ongoing, and currently any use of rapamycin for anti-aging purposes if currently off label.