IGF-1 LR3

IGF-1 LR3 1mg — 10-Vial Pack is supplied as lyophilized powder under nitrogen. Typical reconstitution is in sterile or bacteriostatic water; the exact concentration depends on your protocol. Our free reconstitution calculator computes mL per dose and insulin-syringe units from any combination of vial size, water volume, and target dose.

Batch LR3-2603 of IGF-1 LR3 1mg — 10-Vial Pack is verified in-house at 96.2% HPLC main-peak purity, with molecular weight confirmed by LC-MS and endotoxin screened by LAL assay. That in-house COA — chromatogram, mass spec trace, and purity call — is bundled with your order as a downloadable PDF. Independent third-party re-verification can be arranged for a specific batch on request; it isn't run by default.

All orders ship via DHL, UPS, or FedEx from our China facility, insulated for transit, to 58 countries. Customs duties are prepaid by us (DDP) — no surprise charges on delivery. Estimated transit time is about 10–15 days door to door. Tracking number is emailed when the shipment is scanned by the courier.

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IGF-1 LR3 is a long-acting analog of IGF-1 itself — the downstream mediator GH secretagogues work through — rather than something that prompts the pituitary to release more GH. The Arg3 substitution and extended N-terminus sharply reduce binding to IGF binding proteins, extending its research half-life well beyond native IGF-1. Because it acts downstream of the GH axis, it's studied as a distinct tool rather than stacked with GHRH analogs or ghrelin mimetics the way those two classes are stacked with each other.

Not typically — IGF-1 LR3 acts downstream of the GH axis, so it isn't stacked with ghrelin mimetics or GHRH analogs the way those two classes are paired with each other. It's more commonly studied on its own or alongside insulin-sensitivity research designs.