Sent GLOW, KLOW, and the TB BPC blend to a lab after 30 days refrigerated. 99.6% purity before. 99.6% purity after. Same milligram content. No measurable degradation. These blends are professionally formulated and Peptide storage guide: : r NTNPerformance Peptide Storage 101: Keep Your Peptides Potent + Protected, If youve ever opened your package and thought, Wait why isnt this ice cold? youre not alone., Good news: lyophilized peptides are far How do you make a purified peptide stable for shipping and storage? Lyophilization, also called freeze drying. This process removes water from the peptide solution without harming its delicate structure, turning it BPC 157 trifluoroacetate salt 95% (HPLC) Sigma Aldrich Maximizing Peptide Stability: Lab Storage Techniques