ALLMAX L-CARNITINE L-TARTRATE, 120 Capsules Supplying 500mg L-Carnitine, Vegan and Gluten Free Dietary Supplement
Researchers and scientists at the University of Connecticut's Human Performance Laboratory tested the effects of L-Carnitine on its ability to enhance free-testosterone utilization. In the 21-day human clinical study, L-Carnitine increased the number of androgen receptors compared to results produced by a placebo group.
https://www.ncbi.nlm.nih.gov/pubmed/16826026Androgenic responses to resistance exercise: effects of feeding and L-carnitine. ... PURPOSE: The purpose of this investigation was to determine the effects of 3 wk of L-carnitine L-tartrate (LCLT) supplementation and post-resistance-exercise (RE) feeding on hormonal and androgen receptor (AR) responses.