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Where to Buy RU-58841 — Cheapest Vendor in 2026
Live RU-58841 pricing across every research peptide vendor we track, ranked by price per mg. Updated daily. Right now the cheapest source is Nova Peptides at $0.90/mg.
RU-58841 vendor ranking — cheapest first
Research profile
Mechanism, dosing, half-life, peer-reviewed studies for RU-58841.
Coupon codes
Every active vendor coupon for RU-58841, click-to-copy.
Reconstitution calculator
Vial size + BAC water → concentration, syringe units, doses per vial.
What is RU-58841?
RU-58841 (also known as **PSK-3841** or **HMR-3841**, and commonly written simply as **RU** in hair-loss forums) is a **non-steroidal androgen receptor antagonist** originally developed by Roussel Uclaf (later absorbed into Sanofi) in the late 1980s and early 1990s. The compound was designed as a potential topical treatment for androgen-dependent skin conditions — including **androgenic alopecia (… Read the full RU-58841 research profile
Buying RU-58841 — FAQ
Where can I buy RU-58841 online?
RU-58841 is available from 1 verified research peptide vendor tracked on BodyHackGuide. The cheapest current price per mg is Nova Peptides at $0.90/mg. Tap any "Buy" button on this page to go directly to the vendor's product page.
What's the cheapest price for RU-58841?
Right now the lowest price per mg comes from Nova Peptides at $0.90/mg ($45.00 for 50mg). Daily price snapshots keep this ranking current — bookmark for the live cheapest source.
Is buying RU-58841 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 RU-58841?
RU-58841 is sold for research-use-only by the vendors on this page — no prescription required for research purchases. None of these vendors sell RU-58841 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 .