If you reconstituted more than you will use within one to two weeks, consider dividing the solution into single-use aliquots before freezing, as covered in depth in peptide refrigeration duration guides
If you've exhausted other troubleshooting and still have issues, source quality deserves investigation
Understanding the factors that predict response helps set appropriate individual expectations
G., Emma, F., Sorino, P., De, Palo T., Lavoratti, G., Turrini, Dertenois L., Cassanello, M., Cerone, R., and Perfumo, F
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