Canadian buyers should prioritize suppliers offering: Third-party testing with publicly available results Certificates of Analysis including HPLC-MS data Endotoxin testing results below accepted thresholds Proper storage and shipping (cold chain maintenance) Established reputation in peptide research communities Domestic Canadian suppliers offer advantages including faster shipping (typically 2-4 business days), CAD pricing without exchange rate concerns, and simplified customs processes compared to international orders
Arnold et al., 2020
Seiwerth S, Milavic M, Vukojevic J, Gojkovic S, Krezic I, Vuletic LB, Pavlov KH, Petrovic A, Sikiric S, Vranes H, Prtoric A, Zizek H, Durasin T, Dobric I, Staresinic M, Strbe S, Knezevic M, Sola M, Kokot A, Sever M, Lovric E, Skrtic A, Blagaic AB, Sikiric P
The glycine addition generally does not change the patient experience but may extend shelf life and maintain potency across the storage period