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IGF-1 LR3 pen, black
IGF-1 LR3 pen, pink

Muscle growth

IGF-1 LR3

The muscle-growth factor, long-acting

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IGF-1 LR3 1 mg · +AED 1185 each

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PriceAED 1230

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PEG-MGF 2 mg

AED 1030

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Pens are added as the reusable pen; change the format on the product page if you prefer.

A long-acting analogue of insulin-like growth factor 1, engineered to stay active around 20–30 times longer than the native form. Studied in muscle-growth and tissue-repair models.

Research use only. Supplied for laboratory and analytical research. Not a medicine or supplement, and not for human or animal use. We don't give dosing or clinical advice. Read the terms

Presentation
Lyophilised powder, reconstituted — 3 mL pen

Manufactured under controlled research-grade conditions. For documentation or questions about this compound, contact us on WhatsApp.

Published research

  1. Animal study

    In finishing pigs, a 4-day infusion of LongR3 IGF-I lowered plasma IGFBP-3 and hepatic class 2 IGF-I mRNA without changing liver or kidney IGFBP-3 mRNA; the authors infer a direct suppressive effect on the pigs' growth-hormone axis.

    Dunaiski V, et al. Short-term infusion of LongR(3) insulin-like growth factor (IGF)-I decreases hepatic IGF-I mRNA but not IGF binding protein-3 mRNA expression in pigs. General and Comparative Endocrinology. 2002. PMID 12030778

  2. Animal study

    In artificially reared newborn pigs, infused Long R3 IGF-I did not change weight gain when milk was restricted, but with unlimited milk it increased daily weight gain in the second 9 days of infusion, alongside higher milk intake.

    Dunshea FR, et al. Insulin-like growth factor-I and analogues increase growth in artificially-reared neonatal pigs. The British Journal of Nutrition. 2002. PMID 12067429

  3. Cell study

    In in-vitro-produced cow embryos, Long R3 IGF-I most strongly stimulated early cleavage and gave blastocysts with the most cells, while native IGF-I better supported later development; Long R3 also raised IGFBP-2 and IGF-I receptor mRNA.

    Prelle K, et al. Insulin-like growth factor I (IGF-I) and long R(3)IGF-I differently affect development and messenger ribonucleic acid abundance for IGF-binding proteins and type I IGF receptors in in vitro produced bovine embryos. Endocrinology. 2001. PMID 11181549

Short summaries of published studies, with links to the original papers. Results in animals or cells may not apply to people. This is not medical advice and not a guide to use.

All research on IGF-1 LR3