BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide consisting of 15 amino acids, derived from a protein naturally found in human gastric juice. It is widely studied in preclinical research for its role in tissue repair, angiogenesis, and cytoprotective signalling.

How do I reconstitute BPC-157?

Reconstitute with 1-2 ml of bacteriostatic water. Allow the vial to reach room temperature, inject solvent gently down the inside wall, and swirl gently. Never shake. Store reconstituted solution at 2-8°C and use within 4-6 weeks.

What purity is BioLab's BPC-157?

Every batch is independently tested via HPLC and mass spectrometry to confirm 99%+ purity and correct molecular identity. A batch-specific Certificate of Analysis is available with every order.

How should I store BPC-157?

Store lyophilised vials at -20°C, protected from light and moisture. Once reconstituted with bacteriostatic water, store at 2-8°C and use within 4-6 weeks. Avoid repeated freeze-thaw cycles.

IGF-1 LR3 1000 mcg

£320.00

IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a modified 83-amino-acid analogue of human IGF-1 with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. These modifications reduce IGF binding protein affinity, resulting in significantly enhanced biological potency. Available to buy in the UK – 1000 mcg, 99%+ purity.

Purity: ≥99% (HPLC & MS)
Quantity: 1000 mcg (1 mg) per vial
Amino Acids: 83 (modified IGF-1)
Storage: -20°C (lyophilised) · 2-8°C (reconstituted)

Categories: All Peptides, Growth Hormone Secretagogues, Recovery & Repair

Description
Reviews (0)

IGF-1 LR3 1000 mcg – Long-Acting Growth Factor

IGF-1 LR3 (Long R3 IGF-1) is a synthetic analogue of human insulin-like growth factor-1 engineered for enhanced potency and extended biological activity. Two key modifications distinguish it from native IGF-1: a glutamic acid to arginine substitution at position 3 (Arg3), and a 13-amino-acid N-terminal extension peptide. Together, these changes dramatically reduce binding to IGF binding proteins (IGFBPs), leaving more free IGF-1 LR3 available for receptor activation.

Product Specifications

Molecular Weight	~9,111 g/mol
Amino Acids	83 residues
Key Modification	Arg3 substitution + 13aa N-terminal extension
Purity	≥99% (HPLC & MS)

Research Background

Enhanced IGF-1R activation – By evading IGFBP sequestration, IGF-1 LR3 has approximately 2-3x the potency of native IGF-1 in cell proliferation assays. It activates the IGF-1 receptor (IGF-1R) and downstream PI3K/Akt and MAPK/ERK signalling cascades.

Cell proliferation and survival – IGF-1 LR3 is widely used in cell culture as a growth factor supplement and in research models studying cell proliferation, anti-apoptotic signalling, and tissue growth.

Comparison with IGF-1 DES – IGF-1 DES is an N-terminally truncated IGF-1 variant (amino acids 4-70) with different pharmacokinetics. IGF-1 DES has a shorter duration but higher receptor binding affinity, making the two variants complementary research tools.