This research is still relatively new and as yet, unexplained
Preclinical studies suggest that ALCAR may increase neuroplasticity (the ability of neurons to create new connections) and neurogenesis (the growth of new brain cells) in the hippocampus (where emotional memories are stored) and prefrontal cortex (higher level thinking and modulation of emotional reactions) (Wang and Pae 2017)
doi: 10.1016/S1474-4422(15)00141-6 51 ZhengMWangP
CrossRef The inhibition of interaction with serum albumin enhances the physiological activity of curcumin by increasing its cellular uptake Mayuko Itaya, Taiki Miyazawa, Saoussane Khalifa, Naoki Shimizu, Kiyotaka Nakagawa Food & Function.2022
The study found that participants taking L-carnitine experienced highly significant reductions in post-exercise blood lactate levels and notable increases in total antioxidant capacity
On the other hand, Melanotan 2 offers multifaceted benefits, including weight loss and sexual enhancement, but comes with a higher risk of side effects such as nausea