David P.
Independent Researcher
The CoA matched what I independently verified in my own assay. That's not something I've been able to say about most suppliers.
For Research Purposes Only
Third Party Tested
99% Purity Guaranteed
Discrete Packaging
For Research Purposes Only
Healing & regeneration
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IGF-1 LR3
$133
A long-acting IGF-1 analog with Arg3 substitution. Studied for its sustained anabolic signaling without IGFBP sequestration.
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At your Door in 3-5 Days
Johanna M.
— Protocol researcher
Compound arrived lyophilized, correctly labeled, with a batch-specific CoA. Exactly what a research order should look like.
Edmund.
— Biochem researcher
I switched to Woosh after a competitor's purity claim didn't hold up to third-party testing.
Sarah C.
— Independent researcher
The research library is genuinely useful. Study citations, mechanism breakdowns — not just marketing copy.
- CAS Number: 143045-27-6
- Molecular Formula: C400H625N111O115S9
- Molecular Weight: 9117.60 g/mol
- Purity: >99% HPLC
- Form: Lyophilized powder
- Storage: Store at 2–8°C
Designation: RUO — Research Use Only. Not for human or veterinary use.
A long-acting IGF-1 analog with Arg3 substitution. Studied for its sustained anabolic signaling without IGFBP sequestration.
The Research Profile section below details the mechanisms and the literature that frames each.
Every vial ships with a Certificate of Analysis tied to its batch. Third-party verified at ≥99% purity by independent HPLC and mass-spec. Discreet packaging, cold-chain handling where required, at your door in 3–5 business days.
If your shipment is delayed, damaged, or fails CoA verification, we replace it — no questions asked.
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Researchers often pair IGF-1 LR3 with these compounds for multi-system protocols.
Bundle total: $169.96
Research Profile
This peptide has been the subject of extensive preclinical investigation across multiple biological systems.
Key areas of research interest include the following.
The Arg3 substitution disrupts IGFBP binding; the N-terminal extension slows proteolytic clearance. Together they produce a plasma half-life of 20+ hours.
Sustained IGF-1R activation drives PI3K/Akt pathway output, mTOR-mediated protein synthesis, and myogenic differentiation in skeletal muscle models.
Widely used in cell culture and in-vivo models of muscle hypertrophy, tissue repair, and insulin sensitivity — where native IGF-1’s short half-life is a confound.
Highly sensitive to freeze-thaw. Store lyophilized at -20°C; once reconstituted, refrigerate and use within 14 days.
Verified Before it Reaches You.
Every Woosh batch undergoes independent third-party testing. The CoA for this product is batch-specific — issued by the testing laboratory, not generated by Woosh.
RESEARCH GRADE . 99% PURITY
IGF-1 LR3 RESEARCH
IGF-1 LR3
IGF-1 LR3
CAS NUMBER
143045-27-6
MOLECULAR FORMULA
C400H625N111O115S9
MOLECULAR WEIGHT
9117.60 g/mol
PURITY
>99% HPLC
DESIGNATION
RUO . RESEARCH USE ONLY
Not for human or veterinary use
BATCH VERIFIED
Research Use Only
This product is strictly for in vitro research and laboratory use only. Not for human or veterinary consumption. By purchasing, you confirm use in a controlled research setting.
Frequently Asked
Questions
Every batch is independently tested via third-party HPLC and mass spec. The full Certificate of Analysis is published before purchase, verifying >99% purity.
A CoA documents the exact compound tested, its purity, and batch identifiers. It's the only independent proof that what's in the vial matches what's on the label.
These are research-grade compounds intended for laboratory study only. Not for human or veterinary use. All research protocols should follow your institution's guidelines.
Store lyophilized peptides at –20°C. Once reconstituted, keep at 2–8°C and use within 30 days for maximum stability.
Every Woosh shipment includes protection. Lost, damaged, or stolen orders are replaced or refunded with documentation.
Orders placed before 12pm ship same-day. Standard delivery is 3–5 business days within the US.
Start with our research library — mechanism breakdowns, study citations, and protocol references. Our team can also point you to peer-reviewed literature for any compound.
Yes — volume pricing is available for research labs, universities, and bulk orders. Contact us with your expected monthly volume for a custom quote.
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