Independent third-party testing for research peptides.
Identity. Purity. Contaminants.
42%
of peptides bought from online sources do not match label claims. Independent testing has found samples mislabelled, underdosed, and contaminated with lead and arsenic above international toxicity limits, alongside truncated sequences and synthesis byproducts.
National Library of Medicine
Janvier et al., Talanta
Janvier et al., Talanta
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