"Efficacy of platelet-rich plasma in the treatment of knee osteoarthritis: a meta-analysis of randomized controlled trials." Arthroscopy
For the peptides under consideration, the small size of the copper tripeptide (3 amino acids), the thymosin fragment (7 amino acids), and the body protection compound (15 amino acids) likely limits benzyl alcohol interactions compared to larger proteins
If semaglutide or tirzepatide produce significant weight loss that you maintain, the health benefits (reduced diabetes risk, improved cardiovascular health, better mobility) provide substantial long-term value
(PubMed) Douaud G, Refsum H, de Jager CA, et al
Such molecules can bind to proteins (which contain hundreds or even thousands of amino acids), altering these proteins function, and therefore serving as biochemical messengers