The amyloid dye Thioflavin T emerged as the superstar when age researchers in three independent laboratories tested ten already-promising pro-longevity chemicals across a range of distinctive strains and species of tiny nematode worms known as Caenorhabditis. The project, dubbed the Caenorhabditis Intervention Testing Program (CITP), tackled reproducibility, which has been a lingering problem in age research, given that some of the field’s most prominent research findings cannot be replicated by other labs.