https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6429189/ Table 2 Products assay and purity profile. Suppl.ProvenienceActive Ingredient SourceAll trans-MK7 (Area%)Cis-MK7 (Area%)MK6 (Area%)# Underfined Chromatographic PeaksLabel Claim (μg/unit)Actual Conten (μg/unit)% S1 Europe MenaQ7 7.4 - - 14 100 55 55 S2 Middle East VitaMK-7 97.8 0.8 0.3 2 90 105 117 S3 Australia K2 Vital 90.6 1.7 - 12 30 12 39 ..