Vitamin · live pricing
Where to Buy Biotin — Cheapest Vendor in 2026
Live Biotin pricing across every research peptide vendor we track, ranked by price per mg. Updated daily.
No in-stock Biotin 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 Biotin.
Coupon codes
Every active vendor coupon for Biotin, click-to-copy.
Reconstitution calculator
Vial size + BAC water → concentration, syringe units, doses per vial.
What is Biotin?
Biotin (vitamin B7, also called vitamin H from the German *Haut* for "skin" and historically named coenzyme R, factor W, factor R, factor X, vitamin Bw, or Bios II in various discovery-era nomenclatures) is a water-soluble vitamin that serves as the covalently-attached prosthetic group for **five carboxylase enzymes** in human metabolism: pyruvate carboxylase, acetyl-CoA carboxylase 1, acetyl-CoA … Read the full Biotin research profile
Buying Biotin — FAQ
Where can I buy Biotin online?
Biotin 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 Biotin?
Pricing data updates as vendors restock. Check back when listings come back in stock.
Is buying Biotin 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 Biotin?
Biotin is sold for research-use-only by the vendors on this page — no prescription required for research purchases. None of these vendors sell Biotin 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 .
Free 2026 Peptide Cheat Sheet — 50 pages, PDF
Dosing, reconstitution, stacks, half-lives, and vendor trust tiers. The reference we wish we had on day one.
