inspecting injection sites regularly for signs of reaction
A 2015 review published in BioMed Research International by Pickart, Vasquez-Soltero, and Margolina provided a comprehensive overview of GHK-Cu as a natural modulator of multiple cellular pathways in skin regeneration
2008 Therrien G, Rose C, Butterworth J, Butterworth RF: Protective effect of L-carnitine in ammonia-precipitated encephalopathy in the portacaval shunted rat
As many of these compounds aren't new discoveries, they were researched decades ago and shelved, sometimes for commercial reasons, sometimes simply because society wasn't ready for at-home injecting
It can also cause stomach problems, such as discomfort and bloating, or allergies in some people