One area that has attracted academic discussion, press coverage, and significant biotechnology/pharma R&D investment is concern about undesirable, collateral skeletal muscle mass (SMM) loss, and presumably by extension, loss of strength and function in people taking GLP-1 medications
San Diego sunshine is beautifulbut UV exposure accelerates: Collagen breakdown Hyperpigmentation Fine lines Loss of elasticity Before jumping into hormone-altering peptides, addressing sun damage and skin barrier health is often step one
not recommended, peptide-bond hydrolysis and D-amino acid epimerization risk increases with temperature OK to refreeze No Light sensitive Yes, protect from light Contains two D-amino acid residues (D-2-Nal, D-Phe) critical for receptor binding and metabolic stability
Some people take collagen supplements to counteract this process, with some research backing these claims