l-carnitine vs l-carnitine tartrate L-Carnitine (tartrate)

Coque E, Salsac C, Espinosa-Carrasco G, Varga B, Degauque N, Cadoux M, et al

Often, users are seeking a goal such as weight loss, increasing muscle mass, improving memory, reducing anxiety, or improving longevity

4.7.4 Potential publication bias and selective reporting bias The reviewed literature may be affected by publication bias, as studies reporting positive neuroprotective outcomes are more likely to be published than studies with negative or inconclusive findings

L-carnitine supplementation significantly increased intracellular concentrations of carnitine and its precursor -butyrobetaine in PBMC of dairy cows