IGF1-LR3 1mg


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High Quality IGF1-LR3 for Sale Online

Insulin-like Growth Factor 1 Long R3 (IGF1 LR3), also known as Long R3-IGF1, is a synthetic analog of human insulin-like growth factor 1 (IGF1). IGF1 plays a crucial role in regulating growth, development, and metabolism throughout the body [9]. IGF1 LR3 is designed to have a longer half-life and increased potency compared to natural IGF1, making it a potential therapeutic agent for various conditions [1].

Key Features of IGF1 LR3

Structure and Composition: IGF1 LR3 differs from natural IGF1 in two main ways:

  1. Arginine 3 (R3): The third amino acid in the IGF1 LR3 sequence is arginine (R) instead of glutamic acid (E) in natural IGF1. This substitution enhances IGF1 LR3’s binding affinity to the IGF1 receptor [2].

  2. N-terminal Extension: IGF1 LR3 has an additional 13 amino acids at its N-terminus, which extends its half-life and reduces its binding affinity to IGF binding proteins (IGFBPs). IGFBPs regulate the availability and activity of IGF1, and reduced binding to IGFBPs allows IGF1 LR3 to remain active for a longer period [1].

Extended Half-life

IGF1 LR3 has a half-life of approximately 16 hours, significantly longer than the rough estimate of10 minutes of natural IGF1. This prolonged duration of action allows IGF1 LR3 to exert its effects more effectively [3].

Mechanism of Action

IGF1 LR3 binds to the IGF1 receptor, triggering a cascade of signaling events that promote growth, development, and metabolism. These effects include:

  1. Cell Proliferation: IGF1 LR3 stimulates the proliferation of cells involved in muscle growth, bone repair, and tissue regeneration [7].

  2. Protein Synthesis: IGF1 LR3 enhances protein synthesis, leading to increased muscle mass and improved tissue function [4].

  3. Glucose Metabolism: IGF1 LR3 promotes glucose uptake by cells, improving energy production and reducing blood sugar levels [5].

Clinical Trials and Efficacy

IGF1 LR3 is being investigated for its potential therapeutic applications in various medical conditions:

  1. Muscle Wasting: IGF1 LR3 may help treat muscle loss associated with aging, sarcopenia, and conditions like cancer cachexia [6]

  2. Growth Hormone Deficiency: IGF1 LR3 could be used to supplement IGF1 levels in individuals with growth hormone deficiency [1].

  3. Wound Healing: IGF1 LR3 may promote faster wound healing by stimulating cell proliferation and tissue regeneration [10].

Data on our IGF1-LR3 For Sale

CAS Number: 946870-92-4

Formula: C400H625N111O115S9


Molar Mass: 9117.60 g/mol

Half life: 20-30 Hours

Class: Polypeptide

Storage: Keep refrigerated upon reconstitution.

  • Lyophilized sample in sterile glass vial.
  • Minimum 98% pure.
  • 1mg IGF1-LR3 per vial.
  • Diluent and laboratory supplies not included.

This preparation is a research chemical for in vitro laboratory research purposes only by licensed professionals and is not approved by the FDA for bodily introduction of any kind into humans or animals. IGF1-LR3 is not a drug, food, supplement, or cosmetic and may not be misbranded, misused, or mislabeled as a drug, food, supplement, or cosmetic. 



Some studies suggest that IGF1 LR3 may enhance cognitive function by increasing brain-derived neurotrophic factor (BDNF) levels. BDNF is a protein involved in the growth and survival of neurons, and it plays a crucial role in memory and learning. However, more research is needed to confirm the cognitive benefits of IGF1 LR3 [11].

IGF1 LR3’s ability to stimulate cell proliferation and tissue regeneration may promote faster wound healing. Studies have shown that IGF1 LR3 can accelerate the healing process in various types of wounds, including skin ulcers and burns [10].

Yes, IGF1 LR3 is a naturally occurring variant of IGF1 that is produced in small amounts in the liver, kidneys, and other tissues. However, the synthetic form of IGF1 LR3 is more potent and has a longer half-life than the natural form [1].

IGF1 LR3 is a promising therapeutic agent with the potential to treat a wide range of conditions. However, more research is needed to confirm its safety and efficacy in humans. If further studies prove to be positive, IGF1 LR3 could become an important tool for treating muscle wasting, osteoporosis, diabetes, and other age-related conditions.

Why buy IGF1-LR3 from Sports Technology Labs?

IGF1-LR3 in a lab

When seeking to purchase IGF-1 LR3 online, numerous options are available. However, buying peptides from a randomly chosen company can pose risks. Unfortunately, many companies selling peptides do not conduct product testing or may conceal certificates and contact details for their third-party labs. This raises concerns about potential undisclosed information.

At Sports Technology Labs you can find the highest quality IGF-1 LR3 for sale anywhere on the internet. When you buy peptides from Sports Technology Labs you are choosing the highest quality products. 

Our IGF-1 LR3, recognized as the purest peptide compound, undergoes thorough testing and certification by accredited American third-party laboratories. These labs readily accept phone calls for certificate verification, ensuring transparency in our product quality.

Your IGF-1 LR3 will be delivered in lyophilized form, securely packaged in glass vials, and refrigerated for stability. At Sports Technology Labs, we prioritize transparency in all business operations, eliminating the need for discreet payment methods and guaranteeing the accuracy of our product representation. We are committed to providing the highest quality IGF-1 LR3 for online purchase, supported by a robust 60-day money-back guarantee.

We offer complimentary shipping on orders exceeding $149, with expedited shipping options for those requiring swift delivery. Subscribers to our email list enjoy a 10% discount, and additional 10% savings are available for cryptocurrency payments.

Choosing Sports Technology Labs ensures access to premium IGF-1 LR3 online. Our commitment to consistent, verifiable product quality, secure packaging, timely delivery, and exceptional customer service sets us apart. For any inquiries about IGF-1 LR3 or our other offerings, please contact us, and we’ll promptly address your concerns.

Scientific Research References:

1. Bailes, J., & Soloviev, M. (2021). Insulin-like growth factor-1 (IGF-1) and its monitoring in medical diagnostic and in sports. Biomolecules11(2), 217.

2. Ketha, H., & Singh, R. J. (2015). Clinical assays for quantitation of insulin-like-growth-factor-1 (IGF1). Methods81, 93-98.

3. Yakar, S., Werner, H., & Rosen, C. J. (2018). 40 YEARS OF IGF1: Insulin-like growth factors: actions on the skeleton. Journal of molecular endocrinology61(1), T115-T137.

5. White, A., Stremming, J., Brown, L. D., & Rozance, P. J. (2023). Attenuated glucose-stimulated insulin secretion during an acute IGF-1 LR3 infusion into fetal sheep does not persist in isolated islets. Journal of Developmental Origins of Health and Disease14(3), 353-361.

6. Chakravarthy, M. V. (2000). Modulation of replicative senescence of skeletal muscle satellite cells by insulin-like growth factor-I (IGF-I) (Doctoral dissertation, The University of Texas Graduate School of Biomedical Sciences at Houston).

7. Sundgren, N. C., Giraud, G. D., Schultz, J. M., Lasarev, M. R., Stork, P. J., & Thornburg, K. L. (2003). Extracellular signal-regulated kinase and phosphoinositol-3 kinase mediate IGF-1 induced proliferation of fetal sheep cardiomyocytes. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology285(6), R1481-R1489.

8. Kyle, A. H., Baker, J. H., & Minchinton, A. I. (2012). Targeting quiescent tumor cells via oxygen and IGF-I supplementation. Cancer research72(3), 801-809.

9. Yakar, S., & Adamo, M. L. (2012). Insulin-like growth factor 1 physiology: lessons from mouse models. Endocrinology and Metabolism Clinics41(2), 231-247.

10. Miescher, I., Rieber, J., Calcagni, M., & Buschmann, J. (2023). In Vitro and In Vivo Effects of IGF-1 Delivery Strategies on Tendon Healing: A Review. International Journal of Molecular Sciences24(3), 2370.

11. Dyer, A. H., Vahdatpour, C., Sanfeliu, A., & Tropea, D. (2016). The role of Insulin-Like Growth Factor 1 (IGF-1) in brain development, maturation and neuroplasticity. Neuroscience325, 89-99.

IGF1-LR3 1mg