Lyophilization: Why Research Peptides Ship as Freeze-Dried Powder
Freeze-drying removes water by sublimation at low temperature, leaving a porous solid that resists the chemical reactions that degrade peptides in solution.
Tagged
bpc-157
16 notes in this topic
Net Peptide Content vs. Purity: Two Numbers, Two Different Questions
A vial can be 99% pure and 75% peptide by weight at the same time. Counter-ions, bound water and how amino-acid analysis resolves the difference.
How Research Peptides Are Made: Solid-Phase Peptide Synthesis Explained
How a peptide is built one amino acid at a time on a resin bead, why Merrifield's method won a Nobel Prize, and where impurities enter the process.
Endotoxin Testing in Peptide Quality Control
Endotoxin is the contaminant that survives sterilization. How LAL and recombinant assays detect it, and what an endotoxin result on a COA means.
All content in the research library is educational and intended for qualified researchers. Products referenced are for laboratory research use only and are not approved for human or veterinary use. Nothing here is medical advice.