A clinical study from the University of Padua, Italy, has found that a natural plant extract called MonaJuventa Nu can slow down biological aging. Participants who took the extract supplement daily showed slower aging at a cellular level, better sleep, and more physical activity than those who took a placebo. Mibelle Biochemistry, the company behind the ingredient, says MonaJuventa Nu targets nine of the 12 main signs of aging identified by scientists. The research team behind the study suggests the botanical ingredient may become a promising tool in the growing longevity and healthy aging market.