Quality: Its also best to choose a product that has been third-party tested, as this ensures that it has been tested for heavy metals, contaminants, and accuracy of the label
Theoretical Considerations Telomerase activation in pre-existing tumors is a theoretical concern
A recent study showed that resveratrol pretreatment prevented neuronal apoptosis by reducing the expression of miR-21 through SIRT1 activation in a rat model of TBI (Kaminska et al., 2016)
Reconstituted peptides showing visible cloudiness, particulate matter, or color shift (yellow, brown) have undergone irreversible degradation and should be discarded regardless of exposure duration
Additional Systemic Benefits Animal research also suggests possible benefits of using GHK-Cu for the following applications: Lung protection in injury models DNA repair signaling Anti-cancer activity Anxiolytic and analgesic effects Preservation of gut barrier integrity These are much less conclusively proven in humans compared to the previous benefits, but they are biologically plausible based on known GHK-Cu signaling pathways