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Promising classes include: Protein biomarkers : -synuclein (total and phosphorylated), neurofilament light chain (NfL), DJ-1

You can even see the dose increase spikes on the side effects over time graph

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Theoretical concerns include excessive NAD+ elevation in individuals with preexisting metabolic disorders or mitochondrial dysfunction

Additionally, their larger size and chemical properties make it difficult for them to be absorbed through the intestinal wall into the bloodstream

In addition, because BPC-157 is a gastric peptide, there have been some informal reports of digestive side effects like nausea, diarrhea, appetite changes, gas and bloating related to its administration