According to Bloomberg, pharmaceutical giant Novartis is currently pursuing a handful of drugs that can restore specific physiological functions that typically diminish with age. For example, one would potentially reverse muscle "wasting," another would reverse aging cartilage in joints that causes pain and limited mobility, and another is designed to restore what are known as "hair cells" in the ear canal, which die off over time, leading to hearing loss.
There are also a handful of startups developing so-called "supplements" that aren't hyping themselves up as a cure for aging, but claim they can make you feel younger. The best-known of the bunch is Elysium Health, co-founded by a renowned MIT scientist and backed by six Nobel Prize-winning scientists. Its product, a daily dose of pills it calls Basis, is packed with a combination of naturally occurring compounds and antioxidants associated with longevity, which it claims can restore muscle tissue, improve brain function, and increase energy levels.