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Petersburg Institute of Bioregulation and Gerontology as part of research into tissue-specific peptide regulators

Czechia Greater than 99.8 % purity confirmed by COA Assay content verified at 55.1 mg Endotoxin level below 0.001 EU/mg No detectable heavy metals or microbial contamination NNMT-related research compound for controlled laboratory studies For research use only not for human or veterinary use For laboratory research only

doi: 10.1016/j.expneurol.2017.03.012

That gastric stability is unusual - most peptides would be broken down rapidly by stomach acid and digestive enzymes, making oral delivery impractical