IGF-1 LR3 (insulin-like growth factor-1 long arginine 3) is a synthetic, modified construct of insulin-like growth factor-1. Because IGF-1 LR3 does not bind to IGF-1 binding proteins very well, it remains active up to 120 times longer than standard IGF-1. This results in improved half-life for the peptide and thus increased activity. IGF-1 LR3 enhances cell division and growth, boosts fat metabolism, and increases muscle repair and hypertrophy by inhibiting myostatin. Recent research suggests that IGF-1 LR3 may also be useful in improving lactation among mothers with young offspring.
Chemical Formula: C400H625N111O115S9
Molecular Mass: 9117.60
Synonyms: Long R3-IGF-1, M9L22Y19H9, 143045-27-6, Long-(arg3)insulin-like growth factor-i
CAS Number: 143045-27-6
Total Amount of the Active Ingredient: 1 mg (1 vial)
Shelf Life: 36 months
- IGF-1 binds to IGF type 1 receptors and stimulates tissue growth in nervous, lymphoid, reproductive, smooth muscle, endothelium, and bone tissues. The long R3 IGF-1 version is importantly more potent than its base compound, IGF-1, due to its long half-life of 20-30 hours.
All of our products are lab tested and the results are occasionally published on the website.
You can have the product you bought from us tested at any HPLC licensed testing facility and if the results are negative, we will refund the following:
- Cost of HPLC test
- Total amount of the order + shipping fee
All of our products are lab tested and the results are periodically published on the website.
Hill, R. A., Hunter, R. A., Lindsay, D. B., & Owens, P. C. (1999). Domestic animal endocrinology, 16(4), 219–229. https://doi.org/10.1016/s0739-7240(99)00015-6
- Porcine growth hormone and LongR(3)IGF-I can improve recovery from surgery-induced weight loss in guinea pigs.
Conlon, M. A., & Kita, K. (2001). General and comparative endocrinology, 123(3), 332–336.
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