Nootropics · price comparison
Where to Buy ISRIB: Cheapest Vendor in 2026
ISRIB 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 ISRIB 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 ISRIB.
Coupon codes
Every active vendor coupon for ISRIB, click-to-copy.
Reconstitution calculator
Vial size + BAC water → concentration, syringe units, doses per vial.
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What is ISRIB?
ISRIB is a laboratory compound that blocks the integrated stress response, a signalling pathway that slows protein synthesis in stressed cells, and it was found in Peter Walter's laboratory at the University of California, San Francisco in a screen of 106,281 compounds for inhibitors of PERK signalling (PMID: 23741617). ISRIB works by binding and activating eIF2B, the enzyme that recycles the tra… Read the full ISRIB research profile
Buying ISRIB: FAQ
Where can I buy ISRIB online?
ISRIB 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 ISRIB?
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 ISRIB 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 ISRIB?
ISRIB is sold for research-use-only by the vendors on this page; no prescription required for research purchases. None of these vendors sell ISRIB 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. 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.