doi: 10.3390/metabo13010129
Even a mid-cap that introduces an objectively better-performing drug could face difficulty competing against established brand names
Having the shot directly in to the muscle allows the liquid vitamin to enter the blood stream quickly, bypassing the digestive system and the gastric acids and many other obstacles anything which is taken via the mouth has to go through to reach the small intestine, for re absorption
Medically reviewed by Alan Lucks | MD , Alan Lucks MDPC Private Practice - New York on October 14th, 2025
However, some researchers apply small amounts of reconstituted GHK-Cu topically to targeted areas
Moyano AL, Steplowski J, Wang H, Son KN, Rapolti DI, Marshall J, et al