Muscle Gain & Body Composition with IGF LR3 | Paradigm Peptides

Knowing what your body type is can significantly increase your chances when it comes to muscle growth. What does that mean exactly? Well, if you haven’t heard already there is a new way to classify your body. You’re either an endomorph, ectomorph, or mesomorph. In addition to understanding your body composition, you’ll also want a general understanding of how muscle is created as well as how peptides like IGF LR3 can help in that category.

Muscle Development with Exercise

In most cases, muscle size increases due to continual provocation of muscles to withstand higher levels of weight or resistance. The common term for this is muscle hypertrophy. Muscle hypertrophy occurs when your muscles undergo damage or injury. In doing so the body tends to repair damage fibers by fusing them back together. This then increases muscle mass and size.

There are a few hormones created both naturally and taken synthetically that can also help with the reparation of your muscles. These include human growth hormone, insulin growth factor, or in this case, IGF LR3. The hormones work to improve how your body processes various proteins needed to help the recovery process along. Of course, this is not to say you should go out and injure yourself in any way as that’s not how it works. Instead, you want to essentially create little tears in your muscle through resistance or weight training. Creating those small tears is what helps the process along.

Women vs. Men

When it comes to muscle development, many factors play into how your muscle is formed whether you are a male or female. In most cases, IGF LR3 can help but still knowing how your body works is essential with any fitness goals. This can include things like genetics as well as the levels of estrogen and testosterone within your body.

Macros and Body Types

Another small factor is your body type. There are technically three different variations of body types that have more recently become known to the fitness world. Those three include mesomorphs, ectomorphs, and endomorphs.


As a mesomorph your body typically is already relatively muscular but that’s not to say you can’t still use IGF LR3 in your workout regimen. You’re just more likely to build muscle mass faster than the other two variations of body types. That being said, there are a few things that you can follow as a way to increase your chances of muscle gains. The main thing being having the right ratio of macros. For a mesomorph this means you’ll want a diet consisting of 30% protein, 40% carbohydrates, and 30% fat.


Now, instead of calling your body muscular, the correct term for those with an ectomorphic body is to say that you are slim or have a straight frame. As a general rule of thumb, ectomorphs have a harder time building muscle mass. This is probably one of the body types that can benefit most from the use of IGF LR3 as it tends to improve muscle mass. However, if you’re not wanting to have a muscular look you can still gain strength through resistance training. Your ratio of macros should be somewhere around 25% protein, 55% carbohydrates, and 20% fat for the best results.


Endomorphs tend to have a rounder body composition; this type of body would be considered as curvy. If you’re looking to build muscle and you’re in this category, you’ll find the most luck in strength training. That and by keeping your macro intake close to 35% protein, 25% carbohydrates, and 40% fat.

What is IGF LR3?

IGF LR3 or long arginine 3 IGF 1, is a synthetic peptide and what is called a lengthened analogue of insulin like growth factor one. The main difference is that unlike IGF 1 that has a glutamic acid in the third position, long arginine 3 IGF 1 has an arginine acid instead. It also has 13 more amino acids at its N-terminus. With these modifications it is able to retain its pharmacological activity but is three times more potent than its predecessor IGF 1. Not only that, its half life is also increased to twenty to thirty hours as opposed to the half life of IGF 1 which would ben between twelve and fifteen hours.

Benefits & Side Effects of IGF LR3

Whether you’re taking IGF LR3 for muscle gain or other benefits, it is a relatively good fit for many. For one, it can help you create stable muscle growth even without exercising. In addition to that, you can expect increased strength and improved recovery time. In one study done with rats, it even showed an ability to improve speed and power.

However, something to keep in mind about IGF LR3 is that while there is less of a chance that it will cause cancer there is some inconclusive evidence that it may increase tumor size in patients if taken too frequently. It has at times also shown an affinity of causing hypoglycemia, or lowered blood sugar levels. Therefore, if you’re borderline diabetic or diabetic, this peptide may not be an option for you.

Dosage Protocol for IGF LR3

Understanding how to dose properly can potentially help you avoid any negative effects of IGF LR3. The most common doses range between 20 and 50mcg per day. You’ll more than likely want to take this peptide for a length of six weeks making sure to take a month or so off before continuing on with another cycle. In most cases, you’ll want to start off with the lower dose until your body is used to the product. Then if you want to up your dose, doing it in stages is most recommended.

In any sense, being mindful of your body’s composition type, understanding how muscle is formed, and how to use IGF LR3 correctly is only part of the battle. The other part is finding a reputable peptide manufacturer. That is where we can help.

Paradigm Peptides for IGF LR3

Paradigm Peptides is a peptide, SARM, and research chemical manufacturer that has been around since 2014. We pride ourselves on supplying you with high quality products. What does that mean? It means that each product goes through stringent testing to ensure that it is of the highest purity and potency. This way you get exactly what you need. Want to learn more about our company or how peptide therapy and our products can help you? Then click here to contact our customer service team and we’ll do our best to answer any questions you may have.


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