Monophasic and biphasic effects of angiotensin II and III on norepinephrine uptake and release in rat adrenal medulla
Multiple clinical and laboratory studies have linked it to increased collagen and elastin production, improved wound healing, and visible improvements in firmness and fine lines (research summarised in Briefings in Functional Genomics, 2013, and the Journal of Cosmetic Dermatology, 2015)
It is famously called the mother of all antioxidants, which is made of three amino acids, glycine, glutamine, and cysteine, which are known to repair damaged skin
And the term "copper peptides" itself is doing a lot of unearned work, because it lumps together GHK-Cu (the molecule with 50 years of evidence) with AHK-Cu, GHK-NH2, and a range of synthetic copper-binding sequences that have far thinner mechanism data
Unfortunately, detecting a B12 deficiency isnt always straightforward, as the symptoms often overlap with other conditions