Microbiome Labs MegaQuinone is a unique Vitamin K2 MK-7 supplement produced through natural fermentation of Bacillus subtilis natto — the same fermentation process used to produce traditional Japanese natto — delivering the most bioavailable and longest-half-life form of Vitamin K2 available, combined with the complementary cofactor nutrients needed for optimal K2 utilization.

MK-7 (Menaquinone-7) is the most bioavailable form of Vitamin K2 with a plasma half-life of approximately 72 hours — compared to 1–2 hours for MK-4 — making once-daily dosing effective and allowing more consistent tissue K2 levels. K2 activates osteocalcin (directing calcium into bone matrix) and Matrix-Gla Protein/MGP (preventing calcium deposition in arterial walls and soft tissue) — both of which cannot function without adequate K2 carboxylation. As a Microbiome Labs product, MegaQuinone also incorporates the company's understanding of the gut microbiome's role in K2 production — supporting the gut's natural K2-producing bacterial activity alongside the supplemental K2. Complementary cofactors support K2's activity. Microbiome Labs is a science-first probiotic and gut health supplement company founded by Dr. Kiran Krishnan, a research microbiologist, built around spore-based probiotic technology and clinical research on the human gut microbiome. Available at Beauty Riche with same-day shipping.

Microbiome Labs MegaQuinone K2 MK-7 60 Capsules – Vitamin K2 from Bacillus subtilis