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What a COA Should Include Identity confirmation Mass spectrometry confirming the correct molecular weight (~504 Da for Dihexa) Confirmation that the tested compound matches CAS 1401708-83-5 / PNB-0408 Purity testing HPLC purity reputable listings claim ~98% or higher An HPLC chromatogram showing a single dominant peak, not a cluster of unresolved peaks Contamination testing Residual solvent analysis (especially relevant given DMSO-based transdermal forms) Heavy metals screening where the supplier provides it How to Verify a COA Is Legitimate Match the batch

Adequate antioxidant protection helps maintain stability

This level of quality is incredibly difficult, if not impossible, to achieve in a home environment

(2011) have demonstrated that DSIP can enhance sleep quality in rats, suggesting potential applications in sleep disorders and the promotion of healthy sleep patterns