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    Vitamin · live pricing

    Where to Buy Thiamine — Cheapest Vendor in 2026

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

    No in-stock Thiamine 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 Thiamine.

    Coupon codes

    Every active vendor coupon for Thiamine, click-to-copy.

    Reconstitution calculator

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

    What is Thiamine?

    Thiamine (vitamin B1) is the original vitamin — the deficiency syndrome beriberi was the clinical problem that gave rise to the entire vitamin concept, and the compound isolated from rice polishings by Jansen and Donath in 1926 and synthesized by Robert Williams in 1936 was literally the first "vital amine" (Casimir Funk coined the term *vitamine* in 1912 after investigating the anti-beriberi fact… Read the full Thiamine research profile

    Buying Thiamine — FAQ

    Where can I buy Thiamine online?

    Thiamine 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 Thiamine?

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

    Is buying Thiamine 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 Thiamine?

    Thiamine is sold for research-use-only by the vendors on this page — no prescription required for research purchases. None of these vendors sell Thiamine 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 .