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IGF-1 LR3

Vial products ship as dry lyophilized material unless the product format explicitly states otherwise.

research-use-onlyvial
Research Peptide

IGF-1 LR3

$140.00
Research format / strength

Volume pricing

Per-unit price drops automatically as quantity increases.

Strength12+5+
1mg$140.00$133.00$126.00

Per-unit pricing at each quantity break, applied automatically at checkout.

IGF-1 LR3 supplied as lyophilized powder in a 10 mL vial for laboratory research use only. Each lot is analyzed by an independent third-party laboratory; the lot-specific certificate of analysis is published on this page when available.

This product is not for human consumption. Not for diagnostic, therapeutic or veterinary use. Not FDA-approved. Keep out of reach of children.

Format
Research Peptide
Purity
≥99.3% by HPLC
Use
Research use only — not for human or veterinary use
Lot documentation

Certificate of Analysis

Your lot number is stamped on the base of the vial or bottle. Match it to the list to open the certificate for the exact material you received.

Lots on file
1
Laboratory
AxisPharm, LLC
View lot certificates
Published research

What the literature reports

IGF-1 LR3 (Long R3 IGF-I) is an IGF-I analog with reduced IGF-binding-protein affinity, used in myogenic cell-culture systems to study proliferation and anabolic signaling.

  1. Long R3 IGF-I showed higher potency than native IGF-I for stimulating protein synthesis and proliferation in L6 myoblasts, consistent with reduced IGFBP binding.

    in vitro L6 myoblast culture Francis et al., J Mol Endocrinol, 1992 ↗
  2. In porcine embryonic myogenic cells, Long-R3-IGF-I stimulated proliferation that recombinant IGFBP-3 suppressed through IGF-independent as well as IGF-dependent actions.

    in vitro primary myogenic cell culture Pampusch et al., J Endocrinol, 2003 ↗
  3. In embryonic porcine myogenic cells, recombinant porcine IGFBP-3 suppressed proliferation stimulated by both IGF-I and Long-R3-IGF-I.

    in vitro primary myogenic cell culture Xi et al., J Cell Physiol, 2004 ↗

These summaries describe findings reported in published laboratory and clinical literature about this compound. They are provided for research context only. They are not claims about this product, and nothing here describes an intended use in humans or animals. This material is supplied strictly for laboratory research use.

Made in America. Documented lot by lot.

Most peptides sold in this category are imported in bulk, repackaged, and sold with no paperwork attached to the material in the bottle. Ours are synthesized in United States laboratories and every lot carries its own certificate.

Where is this material made?+
In United States laboratories. We buy from domestic synthesis rather than importing finished bulk from an overseas supplier and relabeling it. That is the reason we are able to name a specific laboratory, lot and test date for what you receive.
Why does a US laboratory matter?+
A domestic supply chain is shorter and documented end to end: identifiable facilities operating under US laboratory practice, and paperwork that follows one specific lot instead of a generic product description. It also means shorter transit and no repackaging between the laboratory and the customer.
What documentation comes with a lot?
A lot-specific Certificate of Analysis from an independent laboratory. The lot number is stamped on the base of the container — match it against the certificates listed on this page, or scan the QR code on the label, to open the report for the exact material shipped.
Where does my order ship from?+
Our United States facility, packed and dispatched domestically with tracking. Orders do not transit customs or get repackaged en route.