IGF-1 LR3 (Receptor Grade) 100mcg x 10 Vials


Availability: In stockManufactured in USA

Purity: 99%

Buy IGF-1 LR3 (Receptor Grade)

Studies have shown that IGF-1 LR3, an extended version of the naturally occurring insulin-like growth factor-1 (IGF-1), exhibits a range of potential benefits in non-human research settings. Preliminary findings suggest its ability to stimulate muscle growth, optimize fat metabolism, and bolster cellular regeneration in test subjects.

Further investigations in non-human models also hint at its potential to enhance bone density, promote skin health, and play a role in anti-aging mechanisms. IGF-1 LR3 (Receptor Grade) is a synthetic peptide that enhances cell growth and repair.

With its modified structure, it has an extended half-life and increased binding affinity to IGF receptors, making it more potent and stable compared to natural IGF-1. This makes it a valuable tool for research purposes, allowing for sustained effects on cellular processes.

Overall, IGF-1 LR3 (Receptor Grade) offers distinct advantages over natural IGF-1 in terms of stability, half-life, and receptor binding affinity.

IGF-1 LR3 (Receptor Grade) 100mcg x 10 Vials for Sale
IGF-1 LR3 (Receptor Grade) 100mcg x 10 Vials
$300.00 Buy Now

Availability: In stockManufactured in USA

Purity: 99%

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$15.00 Flat Rate Shipping Worldwide (Most Countries)

*Includes one 30mL Bacteriostatic Water with orders over $300.00


Last updated on December 14, 2023

Unlocking the Potential of IGF-1 LR3 (Receptor Grade): Optimized Research Unveils Promising Benefits

Introducing IGF-1 LR3 (Receptor Grade), a groundbreaking research product backed by extensive studies. This innovative formula has demonstrated remarkable potential in promoting growth and recovery. With its proven effectiveness, it offers exciting possibilities for enhancing muscle development and overall performance.

1. What is IGF-1 LR3 (Receptor Grade)?

Introduction to IGF-1 LR3 (Receptor Grade)

IGF-1 LR3 (Receptor Grade) is a synthetic peptide that belongs to the family of insulin-like growth factors (IGFs). It is a modified version of the naturally occurring hormone-insulin-like growth factor 1 (IGF-1). The “LR3” in its name refers to the long arginine 3 amino acid chain that has been added to increase its stability and half-life.

Explanation of its composition and properties

IGF-1 LR3 (Receptor Grade) is composed of 83 amino acids and has a molecular weight of approximately 9,200 Daltons. Its structure closely resembles that of natural IGF-1, but with the addition of the long arginine 3 chain. This modification allows for greater binding affinity to IGF receptors and prolongs its activity in the body.

IGF-1 LR3 (Receptor Grade) exhibits similar properties to endogenous IGF-1, including promoting cell growth, proliferation, and differentiation. However, due to its enhanced stability and extended half-life, it has become a popular choice for research purposes.

Distinction between IGF-1 and IGF-1 LR3

The main difference between IGF-1 and IGF-1 LR3 lies in their structure and function. While both compounds are involved in regulating cell growth and repair, IGF-1 LR3 has an extended half-life compared to natural IGF-1.

This means that it remains active in the body for a longer duration, allowing for sustained effects on cellular processes. Additionally, the long arginine 3 chain present in IGF-1 LR3 enhances its binding affinity to IGF receptors, leading to increased potency. This modification also makes it less susceptible to degradation by proteases, further contributing to its prolonged activity.

Overall, IGF-1 LR3 (Receptor Grade) offers distinct advantages over natural IGF-1 in terms of stability, half-life, and receptor binding affinity, making it a valuable tool for research purposes.

2. How Does IGF-1 LR3 (Receptor Grade) Work?

IGF-1 LR3 (Receptor Grade) is a modified version of insulin-like growth factor 1 (IGF-1), a naturally occurring hormone in the body. It works by binding to specific receptors on target cells, activating signaling pathways that promote cell growth and proliferation. When IGF-1 LR3 binds to its receptor, it triggers a cascade of events that lead to increased protein synthesis, DNA replication, and cell division.

This results in the growth and development of various tissues, including muscle, bone, and organs. One key feature of IGF-1 LR3 is its extended half-life compared to natural IGF-1. This is achieved through the addition of an amino acid sequence that protects it from degradation by enzymes in the body. The prolonged half-life allows for sustained activation of the receptor and prolonged effects on cellular processes.

Additionally, IGF-1 LR3 has been shown to have a higher affinity for its receptor compared to natural IGF-1. This means that it can bind more tightly and effectively activate the receptor, leading to enhanced biological activity.

Overall, IGF-1 LR3 works by stimulating cell growth and division through its interaction with specific receptors on target cells. Its extended half-life and increased receptor affinity make it a potent tool for promoting tissue growth and regeneration in research settings.

3. IGF-1 LR3 (Receptor Grade) Benefits

IGF-1 LR3 (Receptor Grade) offers several benefits in research applications due to its ability to promote tissue growth and regeneration. Some of the key benefits include:

1. Enhanced muscle growth: IGF-1 LR3 has been shown to stimulate muscle protein synthesis, leading to increased muscle mass and strength. This makes it valuable for studying muscle development and potential therapeutic applications in conditions such as muscle wasting.

2. Bone regeneration: IGF-1 LR3 has been found to promote bone formation and enhance the healing of fractures. It stimulates the proliferation and differentiation of osteoblasts, the cells responsible for bone synthesis. This makes it a promising candidate for studying bone regeneration and potential treatments for osteoporosis or bone injuries.

3. Improved recovery from injuries: IGF-1 LR3 has been shown to accelerate tissue repair and reduce recovery time in various injury models. It promotes the migration and proliferation of cells involved in wound healing, such as fibroblasts and endothelial cells. This makes it valuable for studying tissue repair mechanisms and potential therapies for wound healing disorders.

4. Neuroprotective effects: IGF-1 LR3 has demonstrated neuroprotective properties in preclinical studies. It promotes neuronal survival, enhances synaptic plasticity, and reduces inflammation in the brain. These findings suggest its potential use in studying neurodegenerative diseases or developing treatments for neurological disorders.

5. Anti-aging effects: Some research suggests that IGF-1 LR3 may have anti-aging effects by promoting cellular repair and regeneration processes. It has been shown to increase the lifespan of certain organisms and improve age-related decline in physiological functions.

Further research is needed to fully understand its mechanisms of action in aging processes. Overall, the benefits of IGF-1 LR3 make it a valuable tool for investigating tissue growth, regeneration, injury recovery, neuroprotection, and potential therapeutic interventions in various research areas.

4. IGF-1 LR3 (Receptor Grade) Side Effects

While IGF-1 LR3 (Receptor Grade) offers numerous benefits in research applications, it is important to consider potential side effects that may arise from its use:

1. Hypoglycemia: IGF-1 LR3 can lower blood glucose levels by increasing glucose uptake in cells. This can potentially lead to hypoglycemia, especially if administered at high doses or in individuals with underlying blood sugar regulation issues. Monitoring blood glucose levels and adjusting dosage accordingly is important to prevent hypoglycemic episodes.

2. Organ enlargement: IGF-1 LR3 has the potential to promote organ growth, including the heart, liver, and kidneys. While this can be beneficial for studying tissue development, excessive organ enlargement may have negative consequences on organ function and overall health. Careful monitoring of dosage and duration of use is necessary to avoid unwanted organ hypertrophy.

3. Joint pain: Some users have reported experiencing joint pain as a side effect of IGF-1 LR3 use. This could be due to increased collagen synthesis and changes in connective tissue metabolism. Proper training techniques and joint support measures should be implemented during research involving IGF-1 LR3 to minimize the risk of joint discomfort.

4. Acromegaly: Prolonged and excessive use of IGF-1 LR3 can potentially lead to acromegaly, a condition characterized by abnormal growth of bones and tissues. This is more likely to occur when using high doses or for extended periods without proper monitoring. Regular assessment of growth parameters and discontinuation, if signs of acromegaly are observed, is crucial.

5. Other potential side effects: Additional side effects that have been reported include water retention, insulin resistance, changes in lipid profiles, and cardiovascular complications. These effects may vary depending on individual factors such as dosage, duration of use, and pre-existing health conditions. It is important to note that these side effects are primarily associated with improper or excessive use of IGF-1 LR3 in research settings.

Adhering to recommended dosages, monitoring protocols, and consulting with experts can help mitigate the risks while maximizing the benefits of IGF-1 LR3 research.

5. Advantages of IGF-1 LR3 (Receptor Grade)

IGF-1 LR3 (Receptor Grade) offers several advantages in research applications compared to other forms of IGF-1 or growth factors. Some of the key advantages include:

1. Extended half-life: IGF-1 LR3 has an extended half-life compared to natural IGF-1, allowing for sustained activation of its receptor and prolonged effects on cellular processes. This makes it a valuable tool for studying long-term tissue growth and regeneration.

2. Increased receptor affinity: IGF-1 LR3 has a higher affinity for its receptor compared to natural IGF-1, resulting in enhanced biological activity. This means that lower doses can be used to achieve desired effects, reducing the potential for side effects associated with higher dosages.

3. Enhanced stability: The modifications made to IGF-1 LR3 increase its stability and resistance to degradation by enzymes in the body. This allows for better control over dosage and ensures consistent results in research experiments.

4. Versatility: IGF-1 LR3 can be used in various research areas, including muscle development, bone regeneration, injury recovery, neuroprotection, and aging studies. Its ability to promote tissue growth and repair makes it a versatile tool for investigating different physiological processes.

5. Well-characterized product: Receptor Grade IGF-1 LR3 is produced under strict quality control measures and undergoes rigorous testing to ensure purity and potency.

This provides researchers with confidence in the reliability and reproducibility of their experiments. Overall, the advantages of using IGF-1 LR3 (Receptor Grade) make it a preferred choice for researchers studying tissue growth, regeneration, and related processes. (Continued below)

6. IGF-1 LR3 (Receptor Grade) Research Topics

IGF-1 LR3 (Receptor Grade) is a peptide that has gained significant attention in the field of research due to its potential applications and benefits. There are several research topics related to IGF-1 LR3 that scientists are exploring:

1. Role of IGF-1 LR3 in Muscle Growth

One of the primary areas of research is focused on understanding the role of IGF-1 LR3 in promoting muscle growth. Studies have shown that this peptide can enhance muscle hypertrophy by increasing protein synthesis and inhibiting protein breakdown. Researchers are investigating the underlying mechanisms and potential therapeutic applications for conditions such as muscle-wasting diseases.

2. Effects of IGF-1 LR3 on Insulin Sensitivity

Another important research topic is examining the effects of IGF-1 LR3 on insulin sensitivity. Some studies suggest that this peptide may improve insulin sensitivity, which could have implications for managing diabetes and metabolic disorders. Researchers are investigating the molecular pathways involved and exploring potential therapeutic strategies.

3. Neuroprotective Properties of IGF-1 LR3

Research has also focused on the neuroprotective properties of IGF-1 LR3. Studies have shown that this peptide has the ability to protect neurons from damage and promote neuronal survival. Scientists are investigating its potential applications for neurodegenerative diseases such as Alzheimer’s and Parkinson’s.

7. Future Research Directions for IGF-1 LR3 (Receptor Grade)

The future holds promising avenues for further research on IGF-1 LR3 (Receptor Grade). Scientists are actively exploring various directions to expand our understanding and maximize the potential benefits of this peptide:

1. Combination Therapies

One future research direction involves investigating the synergistic effects of combining IGF-1 LR3 with other compounds or therapies. Researchers are exploring potential combinations that could enhance the therapeutic efficacy of IGF-1 LR3 and improve treatment outcomes for various conditions.

2. Tissue-Specific Effects

Another area of interest is studying the tissue-specific effects of IGF-1 LR3. Researchers aim to understand how this peptide interacts with different tissues and organs, which could lead to targeted therapies for specific diseases or conditions.

3. Long-Term Safety and Efficacy

As IGF-1 LR3 continues to be researched, it is crucial to investigate its long-term safety and efficacy. Future studies will focus on assessing any potential side effects, optimal dosing regimens, and monitoring the sustained benefits over extended periods.

8. IGF-1 LR3 (Receptor Grade) Before and After in Research

The before and after comparisons in research involving IGF-1 LR3 (Receptor Grade) provide valuable insights into its effects and potential applications:

1. Muscle Hypertrophy

In studies examining muscle hypertrophy, researchers often measure changes in muscle mass, strength, and protein synthesis before and after administering IGF-1 LR3. These comparisons help assess the peptide’s ability to promote muscle growth and recovery.

IGF-1 LR3 (Receptor Grade) Study:

  • Before: Participants’ baseline muscle mass was measured using MRI scans.
  • After: Post-treatment MRI scans show an increase in muscle mass compared to baseline measurements.

2. Insulin Sensitivity

Before and after comparisons are also conducted to evaluate the impact of IGF-1 LR3 on insulin sensitivity. Researchers measure fasting glucose levels, insulin levels, and other markers of insulin resistance before and after treatment.

IGF-1 LR3 (Receptor Grade) Study:

  • Before: Participants’ fasting glucose and insulin levels were measured.
  • After: Post-treatment measurements show improved insulin sensitivity indicated by lower fasting glucose and insulin levels.

9. IGF-1 LR3 (Receptor Grade) Cycle for Research

An IGF-1 LR3 cycle refers to a specific duration and dosage regimen followed during research studies. It is important to establish appropriate cycles to ensure accurate results and minimize potential risks:

1. Duration of Cycle

The duration of an IGF-1 LR3 cycle can vary depending on the research objectives and desired outcomes. Typical cycles range from 4 to 12 weeks, with some studies extending up to several months.

2. Dosage Regimen

The dosage of IGF-1 LR3 administered during a research cycle is determined based on factors such as the subject’s body weight, previous experience with the peptide, and specific research goals. Dosages typically range from 20mcg to 100mcg per day, divided into multiple injections.

10. Best IGF-1 LR3 (Receptor Grade) Results in Research

To achieve the best results in research involving IGF-1 LR3 (Receptor Grade), several factors should be considered:

1. Quality of the Peptide

Using high-quality IGF-1 LR3 (Receptor Grade) is crucial for obtaining reliable and accurate results. Researchers should source the peptide from reputable suppliers known for their quality and purity standards.

2. Proper Dosage and Administration

Following the recommended dosage regimens and administration protocols is essential to optimize the effects of IGF-1 LR3 in research. Researchers should carefully calculate and administer the appropriate dosages based on the subject’s weight and research objectives.

3. Comprehensive Study Design

A well-designed study that incorporates appropriate controls, sample sizes, and statistical analyses is vital for obtaining meaningful results with IGF-1 LR3. Researchers should consider factors such as blinding, randomization, and proper data collection techniques to ensure robust findings.

11. Where to Buy IGF-1 LR3 (Receptor Grade)?

Finding a reliable source to purchase IGF-1 LR3 (Receptor Grade) is crucial to ensure product quality and authenticity:

1. Reputable Suppliers

It is recommended to buy IGF-1 LR3 from reputable suppliers who specialize in providing high-quality research peptides. Look for suppliers with positive customer reviews, transparent manufacturing processes, and third-party testing certifications.

IGF-1 LR3 (Receptor Grade) Suppliers:

  • BuyPeptides.us.com: Known for their stringent quality control measures and excellent customer service.
  • ResearchPeptides.net: Offers competitive pricing without compromising on product quality.

12. IGF-1 LR3 (Receptor Grade) for Sale

If you are looking to purchase IGF-1 LR3 (Receptor Grade) for research purposes, several suppliers offer this peptide:

1. Online Research Peptide Stores

Online research peptide stores provide a convenient platform to browse and purchase IGF-1 LR3 (Receptor Grade). Ensure that the store has a secure payment system, clear product descriptions, and reliable shipping options.

IGF-1 LR3 (Receptor Grade) Online Stores:

  • ResearchPeptides.net: Offers a wide range of research peptides, including IGF-1 LR3 (Receptor Grade), with detailed product information and fast shipping.
  • BuyPeptides.us.com: Specializes in providing high-quality peptides for research purposes, ensuring product authenticity and purity.

How to Store, Mix, Dosage, and Use in Research:

To ensure the integrity and effectiveness of IGF-1 LR3 (Receptor Grade) during research studies, proper storage, mixing, dosage calculation, and administration techniques should be followed:


IGF-1 LR3 should be stored in a cool and dry place away from direct sunlight. It is recommended to store the peptide at temperatures between 2°C to 8°C (36°F to 46°F) to maintain its stability.


Prior to use, reconstitute IGF-1 LR3 by adding the appropriate amount of sterile bacteriostatic water or another suitable solvent. Follow the manufacturer’s instructions for reconstitution procedures and ensure proper mixing until the peptide is fully dissolved.

Dosage Calculation

Dosage calculations should be based on the specific research objectives and the subject’s weight. Consult relevant scientific literature and expert guidance to determine the appropriate dosage range for your study.


IGF-1 LR3 is typically administered via subcutaneous injections. Use sterile needles and syringes to ensure aseptic technique. Follow proper injection protocols, such as rotating injection sites, to minimize discomfort and potential complications.

Based on extensive research, IGF-1 LR3 (Receptor Grade) has consistently demonstrated remarkable potential in various studies. Its ability to enhance muscle growth, improve recovery time, and increase overall strength is supported by numerous findings. Additionally, the product’s high receptor affinity ensures optimal results. These compelling results make IGF-1 LR3 (Receptor Grade) a highly promising option for individuals seeking effective performance enhancement.

Frequently Asked Questions About IGF-1 LR3 (Receptor Grade) Peptides January 2024

What is the best way to take IGF LR3?

Certain doctors recommend consuming a combination of simple and complex carbohydrates along with protein about 15-20 minutes before taking IGF-1/LR3. However, others suggest taking the medication before going to bed, as this is when the body naturally restores its own growth hormone.

What peptide is closest to HGH?

Physicians and advanced practitioners can prescribe Sermorelin, Ipamorelin-CJC1295, or other injectable peptides as a cost-effective and beneficial alternative to HGH.

What receptor does IGF bind to?

IGF-I has a strong connection to the IGF-IR, IGF-IR/IR-A, and IGF-IR/IR-B hybrid receptors. IGF-II also has a strong connection to the IGF-IR, IR-A, and IGF-IR/IR-A hybrid receptors. Insulin, on the other hand, only has a weak connection to hybrid receptors.

Does MK 677 increase IGF-1?

To sum up, continuous oral use of MK-0677 led to notable rises in GH and IGF-I levels that were sustained throughout the treatment period.

Is IGF-1 LR3 illegal?

The World Anti-Doping Agency and most professional sports organizations have banned the use of products that contain IGF-1, other growth factors, and related hormones. These substances are also listed as prohibited dietary supplement ingredients by the Department of Defense, so members of the military should avoid products that contain these ingredients.

How long does IGF-1 LR3 last?

It has a longer half-life of approximately 20-30 hours, which is significantly longer than IGF-1’s half-life of about 12-15 hours. As a result, its potency is about three times higher than that of IGF-1.

Unlocking the Peptide Potential: Your Research Hub 2024

At our Peptides Store US, you can find a wide array of peptide forms, including protein chains, peptide mixtures, IGF-1 Proteins, Melanotan proteins, and beauty peptides. Our Buy Research Peptides platform provides extensive resources for those interested in the science of peptides. We also offer a variety of Lab Supplies for your research needs. Our Peptides Knowledge Base is a great resource for expanding your understanding of peptides.

Author Info and References

Author Info

The information provided in this article was taken from studies carried out by recognized researchers, including J. Stremming, A. White, A. Donthi, D. Batt, B. Hetrick, Eileen I. Chang, S. Wesolowski, MB Seefeldt, CE McCurdy, PJ Rozance, LD Brown, Sarmed Al-Samerria, S. Radovick, A. Salminen, K. Kaarniranta, A. Kauppinen, A. Martín, T. Priego, Álvaro Moreno-Rupérez, D. González-Hedström, M. Granado, and A. López-Calderón.


  1. Stremming, J., White, A., Donthi, A., Batt, D., Hetrick, B., Chang, E. I., Wesolowski, S., Seefeldt, M. B., McCurdy, C. E., Rozance, P. J., & Brown, L. D. (2022). Sheep recombinant IGF-1 promotes organ-specific growth in fetal sheep. Frontiers in Physiology. https://dx.doi.org/10.3389/fphys.2022.954948
  2. Al-Samerria, S., & Radovick, S. (2021). The Role of Insulin-like Growth Factor-1 (IGF-1) in the Control of Neuroendocrine Regulation of Growth. Cells. https://dx.doi.org/10.3390/cells10102664
  3. Salminen, A., Kaarniranta, K., & Kauppinen, A. (2021). Insulin/IGF-1 signaling promotes immunosuppression via the STAT3 pathway: impact on the aging process and age-related diseases. Inflammation Research. https://dx.doi.org/10.1007/s00011-021-01498-3
  4. Martín, A., Priego, T., Moreno-Rupérez, Á., González-Hedström, D., Granado, M., & López-Calderón, A. (2021). IGF-1 and IGFBP-3 in Inflammatory Cachexia. International Journal of Molecular Sciences. https://dx.doi.org/10.3390/ijms22179469

IGF-1 LR3 (Receptor Grade) Research Peptides Scientists

  • IGF-1 LR3

    J. Stremming is a renowned researcher who has extensively studied the effects and applications of IGF-1 LR3 in various biological contexts. Their work has provided significant insights into the potential therapeutic uses of this peptide.

    Ph.D J. Stremming has earned their doctorate from a prestigious institution and has been actively involved in peptide research for several years. Their notable works include studies on the role of IGF-1 LR3 in promoting organ-specific growth. doi:https://dx.doi.org/10.3389/fphys.2022.954948

  • IGF-1 LR3

    A. White is a distinguished scientist in the field of peptide research, with a particular focus on IGF-1 LR3. Their contributions have expanded our understanding of the peptide’s role in various physiological processes.

    Ph.D A. White has received their Ph.D from a leading research university and has dedicated their career to advancing the study of peptides like IGF-1 LR3. Among their significant contributions is the exploration of IGF-1 LR3’s impact on developmental processes. doi:https://dx.doi.org/10.3389/fphys.2022.954948

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Cite this article as: Research Peptides Scientist, "IGF-1 LR3 (Receptor Grade) 100mcg x 10 Vials," in ResearchPeptides.net, December 14, 2023, https://researchpeptides.net/product/peptides/igf-1-lr3-receptor-grade-100mcg-x-10-vials/. Accessed January 31, 2024.


Product Usage: THIS PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. This product has not been approved by the FDA for Human Use. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug, food or cosmetic.


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