IGF-1 LR3 for Sale: Where to Buy, Compared by Price per mg

Who we send people to

Nurapeptide, at $65 for a full 1mg vial. Three vendors in the table below list a few dollars less, so this is not the cheapest line on the page and we are not going to pretend otherwise.

What it has instead is the thing that goes wrong most often on this compound: the vial size is stated plainly at 1mg, the listing has held stock rather than flickering in and out, and the label claims ≥99% purity with third-party testing. We are paid a commission on that link, and on none of the others here.

One caveat worth knowing before you order. Their COA library button does not currently open anything, so email for the batch-matched certificate rather than assuming it is published, and check the vial the day it lands — their window for reporting a damaged shipment is 48 hours from delivery.

Why the cheapest listing is the most expensive

Core Peptides lists IGF-1 LR3 at $28. That is a 100mcg vial, a tenth of a milligram, which works out at $280 per mg. PeakLab lists $71 for a full 1mg vial, which is $71 per mg. The $28 listing costs four times as much for the same amount of peptide.

This is the single most common way people overpay on IGF-1 LR3. Sort by price per mg, never by the number on the listing.

What to check before ordering

Ask for the certificate of analysis for the batch you will receive, not a generic one. IGF-1 LR3 is a 70-amino-acid protein rather than a short peptide, so purity by HPLC matters more than it does for something like BPC-157, and mass spectrometry confirming a molecular weight near 9,111 Da is the check that a supplier is shipping the LR3 analogue rather than plain IGF-1.

Cold chain is the second thing. IGF-1 LR3 degrades faster at room temperature than most research peptides. A vendor that ships without a cold pack in summer is telling you something about how they store it too.

Red flags

A vendor that will not name the vial size in milligrams is usually hiding a 100mcg vial behind a low price. A certificate with no batch number is not a certificate. And any vendor selling IGF-1 LR3 as an oral capsule or a nasal spray is selling something that cannot work: a protein this size does not survive either route.

How we are paid, and what it does not change

We do not sell IGF-1 LR3. One link on this page pays us — Nurapeptide — and the other nine are plain links we earn nothing on. That is a change from the earlier version of this page, which had no affiliate on it at all, and it is stated here rather than buried.

What has not changed is the table. It is still sorted on price per mg, so the vendor we recommend sits fourth in it rather than first, and the cheaper options stay visible above them. If you only want the lowest number, take the top row.