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RUO peptides are not manufactured under GMP standards, not tested for sterility or purity, and independent lab analyses have repeatedly found them contaminated, mislabeled, or inaccurately dosed
Request a Certificate of Analysis showing HPLC purity above 98 percent, mass spectrometry confirmation of the correct molecular weight (340.38 Da for the free tripeptide), and absence of heavy metal contamination beyond the copper complex
Most of what we know comes from preclinical and experimental research, rather than human trials
Claim being checked TB-500 (thymosin beta-4) is an unregulated research peptide that promotes angiogenesis and cell migration, processes that can accelerate existing tumor growth
Oversupplementation of vitamin B12 is of no concern as it is water-soluble and excreted in urine
Reference: Kleinman HK & Sosne G (2012)
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