Nootropic ingredients to limit or avoid There arent many common nootropic ingredients that are inherently dangerous, but there are a few with higher risks than most: Vinpocetine can induce miscarriages or birth defects if taken while pregnant77 Huperzine A can cause acetylcholine toxicity if taken in high doses for too long70 Certain populations may also want to limit their exposure to ashwagandha, as anecdotal evidence suggests it can lead to miscarriages and thyroid complications highlighted in case studies78 100 34 These effects have not been firmly established by research, but those with thyroid issues or those pregnant or planning to become pregnant may want to look elsewhere
Journal of Composites Science
[Link] On the whole, the improvements on active drugs reached or exceeded the baseline variability of psychogeriatric scales and tests Ando, S, et al, Enhancement of learning capacity and cholinergic synaptic function by carnitine in aging rats. in The Journal of Neuroscience Research , Volume 66, Issue 2, October 2001, pp 266 - 271
Grzam et al., 2007
CJC 1295 raises the baseline of available growth hormone, and Ipamorelin triggers a strong, clean release of that hormone