These peptides work at concentrations where pH disruption can meaningfully reduce efficacy
Methods Cell Biol 52 (8), 155176
To access a fraction of that library in a proof-of-concept study, a 96-well assay containing ()- t -ES, Cp1B and Cp1D, eight proteinogenic amino acids (l-Ile, l-Leu, l-Val, l-Met, l-Phe, l-Trp and l-Tyr, with l-His as a negative control) and 12 amine donors including additionally tested amines such as spermidine ( b42 ), 4-(2-aminoethyl)-pyridine ( b43 ) and tryptamine ( b44 ) were performed
Im on week 3 absolutely no problems
Each lot is produced in the USA under stringent quality systems, with identity and purity confirmed by analytical methods such as HPLC and mass spectrometry