Nootropic · price comparison
Where to Buy Caffeine: Cheapest Vendor in 2026
Caffeine 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 Caffeine 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 Caffeine.
Coupon codes
Every active vendor coupon for Caffeine, click-to-copy.
Reconstitution calculator
Vial size + BAC water → concentration, syringe units, doses per vial.
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What is Caffeine?
Caffeine (1,3,7-trimethylxanthine) is a natural methylxanthine alkaloid found in the seeds, fruits, leaves, and bark of over 60 plant species — most notably Coffea (coffee), Camellia sinensis (tea), Theobroma cacao (cacao), Paullinia cupana (guaraná), Ilex paraguariensis (yerba mate), and Cola acuminata (kola nut). It is the world's most widely consumed psychoactive substance, with an estimated 8… Read the full Caffeine research profile
Buying Caffeine: FAQ
Where can I buy Caffeine online?
Caffeine 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 Caffeine?
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 Caffeine 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 Caffeine?
Caffeine is sold for research-use-only by the vendors on this page; no prescription required for research purchases. None of these vendors sell Caffeine 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.