IGF1-LR3
A modified IGF-1 with extended half-life and enhanced potency due to reduced IGFBP binding, valuable for cell proliferation, muscle biology, and metabolic signaling research. All presented information is based on scientific publications which can be found at the end of product description below.
Batch-level quality proof
Every research peptide is supplied as a sealed, clearly labelled vial. Batch-level CoA information and purity testing records are available online where applicable, not shipped as research paperwork in the parcel.
Clear label, lot traceability, protective packaging.
No COA report currently listed for this product/batch.
Not for human or veterinary use, no protocol or dosing advice.
IGF1-LR3 research authority cluster
Use these pages to connect IGF1-LR3 product data, IGF-1 analog research context, quality testing standards, and online CoA information where applicable.
Product specifications
Description
All presented information is based on scientific publications which can be found at the end of product description below.
IGF1-LR3 features an arginine substitution at position 3 and a 13-amino-acid N-terminal extension that reduce IGFBP binding, resulting in increased bioavailability and prolonged activity. Research Highlights 1. Growth Factor Signaling — Higher free concentrations and enhanced tissue-level activity vs native IGF-1.
2. Cell Proliferation — Sustained PI3K/Akt and MAPK/ERK pathway activation across multiple tissue types.
3. Muscle Biology — Supports satellite cell activation, myoblast proliferation, and myofiber hypertrophy.
4. Metabolic Effects — Insulin-like effects on glucose uptake and lipid metabolism with distinct receptor selectivity.
5. Tissue Engineering — Widely used as growth supplement in cell culture and serum-free conditions. References available upon request. The product is intended for scientific research and development purposes only. Chemical substances shall not be used as a drug, medicine, active substance, medical aid, cosmetic product, a substance for production of a cosmetic product neither for human consumption that is any food or food supplement or otherwise similarly used on humans or animals. Intended only for in-vitro research, such as Receptor-ligand binding studies, Enzyme activity assays, Cell proliferation assays, Cell signaling assays, Epitope mapping, etc.
Research Use Only: The product is intended for scientific research and development purposes only. Chemical substances shall not be used as a drug, medicine, active substance, medical aid, cosmetic product, a substance for production of a cosmetic product neither for human consumption that is any food or food supplement or otherwise similarly used on humans or animals. Intended only for in-vitro research, such as Receptor-ligand binding studies, Enzyme activity assays, Cell proliferation assays, Cell signaling assays, Epitope mapping, etc.
No COA report currently listed for this product/batch.
View CoA archive / request available information🇪🇺 EU & UK shipping • Free over €300 • estimated at checkout
Frequently asked questions
- Batch-level CoA information is available where applicable and focuses on purity testing. We do not claim identity testing unless that test exists for the specific batch.
- Store the lyophilised vial at -20°C, protected from light. Once reconstituted for in-vitro work, follow your laboratory's standard handling and stability protocols. Most reconstituted peptides remain stable at 2-8°C for short-term use.
- No. All Peptra Labs peptides are supplied strictly for laboratory and educational research use only. They are not approved for human or veterinary administration, are not evaluated by the FDA or EMA, and must not be used as drugs, supplements, or cosmetic products.
- We ship across the EU and the United Kingdom. Most orders arrive within 2-5 business days. Free shipping on orders over €300.
- Each shipment contains the sealed, clearly labelled vial only. Batch-level CoA information is available in the Lab Reports section where applicable. Research-use warnings are shown on the vial label and site policy pages.
- Yes. Recent lab reports are available in our Lab Reports section. If you'd like the COA for a specific lot before purchasing, contact us at info@peptralabs.com.
