The 5-HT4 receptor, specifically expressed in the prefrontal cortex and limbic system (including the hippocampus and amygdala), regulates learning, memory, and cognitive function [58, 59]
As for the two methods by which GHK-Cu may be administered: GHK-Cu cream side effects Researchers have not attributed any side effects to topical GHK-Cu formulas tested to date, and all available research shows that the peptide is non-toxic and a non-irritant when applied directly to the skin [5]
Glutathione Reactions Nausea, vomiting, lightheadedness, chills, fever, shaking, low blood pressure, breathing symptoms, and allergic reactions can occur, especially when compounded product quality is compromised
Jr, et al
Consider adding a facial oil at night
Neurological Support and Mental Clarity The brain is particularly vulnerable to oxidative stress, which can disrupt communication between neurons and impact memory, focus and mood