glutathione for eye health L-Glutathione - Vision Guard Can Glutathione Remove Dark Circles?

Are there any known side effects of dihexa peptide

This receptor plays a central role in signaling endothelial cells to proliferate, migrate, and form new vessel structures

Neuron-mediated regulation of CBF Neurons release chemical signals that directly or indirectly influence receptors on pericytes and astrocytes, resulting in either decreased CBF due to depolarization and cell contraction or increased CBF through hyperpolarization and cell relaxation

Saraf VS, Sheikh SA, Ahmad A, Gillevet PM, Bokhari H, Javed S

As there are no human comparative or controlled studies of the newer peptides, nor any manufacturing controls, it is impossible for me as a physician to prescribe these peptides for my patients