glp 1 receptor antagonists GLP-1 agonists show promise in treating substance use disorders Trends in the Development of

Storing peptides in plastic syringes for extended periods can lead to adsorption and potential degradation

doi:10.1111/cen.12066 Wichman J, Winther KH, Bonnema SJ, Hegeds L

Design and synthesis of conformationally constrained glucagon-like peptide-1 derivatives with increased plasma stability and prolonged in vivo activity

Reduced efficacy during weeks three and four of a 30-day opened vial may suggest accelerated degradation from improper storage

However, there is research to support that creatine monohydrate is the best form of creatine, since it has been shown to produce the best results compared to other forms of creatine, and is also absorbed more effectively by the body