The study was based on peer-reviewed scientific articles in English that examined the nutritional and biochemical composition of Spirulina and its potential applications in food and health
Zanr V, Campagnari R, Cerulli A, Masullo M, Cardile A, Piacente S, et al
SIRT1 promotes endothelium-dependent vascular relaxation by activating endothelial nitric oxide synthase
These findings come from controlled lab and tissue studies not large human clinical trials but they help explain why copper peptides and perhaps combining both AHK and GHK are trending in scalp and hair research
More specifically, the RGDL motif and stapled alpha-helix structure of peptide 5a mimic the binding interactions with the proTGF1/v6 complex, effectively preventing TGF from being activated (Nardelli et al., 2019)