Vitamin · price comparison
Where to Buy Thiamine: Cheapest Vendor in 2026
Thiamine pricing across every research peptide vendor we track, ranked by price per mg. Prices change often, so check the vendor before you buy.
No in-stock Thiamine listings right now.
Vendor stock changes often, so check back. 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.
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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 facto… 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 and check back, since vendor stock changes often.
What's the cheapest price for Thiamine?
No vendor we track lists it as in stock, so there is no price to compare. Check back when listings come back in stock.
Is buying Thiamine online safe?
Vendor safety varies. BodyHackGuide scores every vendor on a 0-100 Trust Score (COA verification, payment transparency, community feedback, shipping practices). This page ranks listings by price per mg, not by score, so check each vendor's score breakdown on its BodyHackGuide profile before you buy.
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 earns a commission on some of its links, at no additional cost to you. Vendor rankings are based on price per mg from the listings we track. We don't accept payment for editorial placement. See our full affiliate disclosure .
Free 2026 Peptide Cheat Sheet (PDF)
38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers.