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    Foundational · live pricing

    Where to Buy Vitamin K2 — Cheapest Vendor in 2026

    Live Vitamin K2 pricing across every research peptide vendor we track, ranked by price per mg. Updated daily.

    No in-stock Vitamin K2 listings right now.

    Vendor inventory updates daily — listings populate this page automatically as supply returns. Use the compound profile to track research progress in the meantime.

    Research profile

    Mechanism, dosing, half-life, peer-reviewed studies for Vitamin K2.

    Coupon codes

    Every active vendor coupon for Vitamin K2, click-to-copy.

    Reconstitution calculator

    Vial size + BAC water → concentration, syringe units, doses per vial.

    What is Vitamin K2?

    Vitamin K2 refers to the menaquinone family of fat-soluble vitamins—structurally distinct from but functionally related to vitamin K1 (phylloquinone, found in leafy greens). Menaquinones are designated MK-n based on the length of their isoprenoid side chain, with MK-4, MK-7, and MK-9 the most nutritionally relevant forms. While vitamin K was originally discovered through its role in blood coagulat… Read the full Vitamin K2 research profile

    Buying Vitamin K2 — FAQ

    Where can I buy Vitamin K2 online?

    Vitamin K2 is currently between in-stock listings across the vendors we track. Bookmark this page — it auto-updates daily as inventory comes back.

    What's the cheapest price for Vitamin K2?

    Pricing data updates as vendors restock. Check back when listings come back in stock.

    Is buying Vitamin K2 online safe?

    Vendor safety varies. BodyHackGuide ranks every vendor on a 0-100 Trust Score (COA verification, payment transparency, community feedback, shipping practices). Vendors below the Trust Score threshold aren't surfaced on this page. The vendor profile linked from each listing shows their full score breakdown.

    Do I need a prescription for Vitamin K2?

    Vitamin K2 is sold for research-use-only by the vendors on this page — no prescription required for research purchases. None of these vendors sell Vitamin K2 for human consumption, and BodyHackGuide doesn't promote off-label use. Always consult a licensed practitioner before any compound enters a clinical context.

    Affiliate disclosure. BodyHackGuide may earn a commission from purchases made via the links on this page — at no additional cost to you. Vendor rankings are based purely on live price-per-mg data and the published Trust Score rubric. We don't accept payment for editorial placement. See our full affiliate disclosure .