Skin tingling (topical use) When applied to the skin, GHK-Cu can cause a mild tingling or warming sensation
The results of this study can help to inform strategies to increase utilization of novel medications when appropriate, and to target efforts to ensure patients are receiving medications that have real benefits for them, especially high-risk, vulnerable populations who, owing to inherent biases in medical practice, can be excluded from these therapies, the researchers wrote
ClinicalTrials.gov (2016)
This is noteworthy because eating a nutritious meal prior to blood donation is important
And if you are breastfeeding, you have an additional metabolic load that must be accounted for
Senolytic Research: Some bioactive peptides are being investigated for their ability to selectively induce apoptosis in senescent (zombie) cells, a process that may reduce the chronic inflammation characteristic of aging