Montalban-Bravo G, Bose P, Alvarado Y, Daver N, Ravandi F, Borthakur G, Takahashi K, Andreeff M, Cortes JE, DiNardo CD, Jabbour E, Kadia TM, Kornblau SM , Ohanian M, Pierola AA, Huang X, Nogueras-Gonzalez GM, Bodden K, Littles K, Pierce S, Bueso-Ramos CE, Kantarjian HM, Garcia-Manero G
Its got some decent research to back it up: Supports strength training : In a study of 24 resistance-trained young men who took carnitine 90 minutes before intense exercise, participants enjoyed a significant increase in power output, as well as lower lactate levels (lactate contributes to the burning feeling in your muscles)
Slow-wave sleep, the deep sleep your body depends on for repair, naturally declines with age
Research References Lau DCW, et al