In the presynaptic terminal, glutamate is converted into GABA via the enzyme glutamic acid decarboxylase (GAD) , whichlike the other synthesis pathwaysis the rate-limiting step
Glutathione is a tripeptide composed of 3 amino acids and is as abundant in your cells as glucose and potassium
Because GHK binds copper strongly, most published research focuses on the copper-bound form (GHK-Cu)
Moreover, whether the exosomes continuously secreted by the engineered cells, as a delivery vector themselves, will transfer the genetic modification effects laterally to distant tissue cells and thereby cause toxicity, is also an urgent issue that needs to be deeply clarified as a safety concern [168]
In conclusion, biotin, vitamin C, and glutathione are key players in the pursuit of healthy, radiant skin, as well as strong hair and nails