Where can researchers buy IGF-1 LR3 online?

IGF-1 LR3 is available directly from Real Peptides, a US supplier of research-use-only compounds. The 1mg vial can be added to the cart on this product page and ships from facilities in Florida and California. Purchasers confirm at checkout that they are 21 or older and are acquiring the material for laboratory research purposes only.

Is this IGF-1 LR3 for sale verified by a third-party lab?

Yes. Every batch of IGF-1 LR3 is submitted to an independent analytical laboratory for identity and purity testing. The certificate of analysis for the exact lot in stock is published on the lab results page, so the documentation can be reviewed before an order is placed rather than requested afterward.

How do laboratories decide on the best IGF-1 LR3 source?

Comparisons generally focus on verifiable evidence rather than marketing claims. Useful criteria include whether an independent laboratory performed the analysis, whether the certificate matches the lot actually shipping, whether identity as well as purity is reported, and whether the supplier states clearly that the material is sold for research use only.

What affects IGF-1 LR3 price between suppliers?

Pricing generally reflects synthesis complexity, vial quantity, the depth of analytical testing performed, and whether that testing is conducted in-house or by an independent laboratory. Current pricing for the 1mg IGF-1 LR3 vial appears on this page. Because pricing changes, the listing itself is the accurate reference at any given time.

What size and format is supplied?

This listing is a single 1mg multi-dose vial of lyophilized IGF-1 LR3 peptide. The material is supplied as a dry powder for laboratory reconstitution and is finished in the USA. Bacteriostatic water is listed separately in the catalog and is not included with the peptide vial.

Where can the certificate of analysis be found?

Certificates of analysis are published on the lab results page of this site, organized by compound and lot number. Each document reports the independent laboratory's findings for the batch currently in stock. The lot identifier printed on the vial label can be matched against the published certificate for verification after delivery.

How quickly does IGF-1 LR3 ship in the US?

Orders are dispatched from US facilities in Florida and California within 24 hours of order placement on business days. Domestic transit times vary by destination and carrier service selected at checkout. Tracking details are issued by email once the parcel leaves the fulfillment facility.

How should IGF-1 LR3 be stored on arrival?

Lyophilized IGF-1 LR3 is generally kept cold, protected from light and moisture, in accordance with the receiving laboratory's standard handling protocols for peptide growth factors. Reconstituted material is typically refrigerated and treated as short-term stock. Storage decisions remain the responsibility of the qualified researcher and their institution's procedures.

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Verified Lab Results

Finished in the USA

Research Use Only

Growth Factor & Tissue Signaling Research · Myogenic Peptides

IGF-1 LR3 Peptide for Laboratory Research

~~$86.40~~$43.20Save 50%

IGF-1 LR3 is a recombinant long-acting analog of insulin-like growth factor-1, a single-chain polypeptide growth factor. It carries an arginine substitution at position three and a 13-amino-acid N-terminal extension, modifications that reduce binding to IGF-binding proteins and extend IGF-1 receptor engagement in cell-culture and preclinical model systems. It is studied in work on cell proliferation, protein synthesis signaling, and metabolic pathway regulation.

Real Peptides supplies IGF-1 LR3 as a 1mg lyophilized multi-dose vial. Every batch is assayed by an independent laboratory, and the certificate for the current lot is published on the lab results page so purity and identity can be reviewed before purchase. Orders ship from Florida and California within 24 hours. Sold strictly for research use only; not for human or animal consumption.

Size

Quantity

$43.20

Bundle & saveBuild Your PackMix & match your pack. The more you add, the more you save — up to 20% off.

Ships within 24 hours
Free standard shipping on orders $250+
Lab report included

IGF-1 LR3 · 1mg

$43.20$86.40

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Frequently paired with this compound by other researchers.

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5mg

For Research Use Only. Not for human consumption or therapeutic treatment.

99% Pure | USA Finish | Multi Dose | Finished in the USA

IGF-1 LR3 is a long-acting analog of insulin-like growth factor-1 (IGF-1) engineered for extended receptor binding and enhanced bioactivity. Ideal for labs probing cell proliferation, protein synthesis, and metabolic regulation, IGF-1 LR3 delivers sustained IGF-1 receptor activation in both cell-culture and small-animal models. Each 1 mg vial is HPLC-verified to ≥ 99% purity, and endotoxin-screened (< 0.1 EU/mg), ensuring reproducible, high-precision data for your IGF-1 research.

What Is IGF-1 LR3 Peptide?

IGF-1 LR3 is a synthetic analog of human insulin-like growth factor-1 in which the first three amino acids are removed and an arginine added at position 3. This modification greatly extends its half-life and receptor affinity. In research settings, IGF-1 LR3 is used to examine IGF-1 receptor dynamics, anabolic signaling, and metabolic regulation with greater temporal control than native IGF-1.

Why Choose IGF-1 LR3?

Researchers select IGF-1 LR3 when they require prolonged and potent IGF-1 activity without rapid degradation. Its enhanced stability and high receptor affinity produce consistent activation of downstream pathways—mTOR, MAPK, and PI3K/Akt—critical for studies of cell proliferation, protein synthesis, and glucose metabolism. Manufactured and verified to ≥ 99% purity, IGF-1 LR3 ensures rigorous reproducibility across both in vitro and in vivo protocols.

What Sets IGF-1 LR3 Apart?

Unlike native IGF-1, IGF-1 LR3’s structural tweaks confer a three- to five-fold longer half-life and increased receptor binding, making it uniquely suited for sustained signaling experiments. Its ability to maintain elevated IGF-1 levels for over 24 hours in animal models eliminates the need for multiple daily doses, simplifying study design and reducing variability. This precision makes IGF-1 LR3 the go-to reagent for high-impact anabolic and metabolic-pathway research.

Growth Factor & Tissue Signaling Research compounds