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Best Peptides For Muscle Growth – What Are They?

Best Peptides for Muscle GrowthWithout a doubt, therapeutic peptides are an exciting group of proteins that have become more popular during the past few years. Worldwide sales in the pharmaceutical industry[1] hit almost $38 billion in 2022, and this figure is rising year on year. The main reason for the rising statistics is the increased demand for treatments to treat many chronic diseases. Peptides are crucial building blocks of proteins with valuable amino acids to treat ailments, destroy microbes, reduce inflammation, and reverse ageing. Various peptides work in specific ways.

In this post, we look at the best peptides for muscle growth and how they are fairing to treat muscle wastage diseases. Plus, some of the top selling best peptides for muscle growth made by Peptide Sciences 2022!

How Peptides For Muscle Growth May Help Muscle Wastage

Peptides work in different ways. In the case of increasing muscle, the growth hormone secretagogues or GHS are the types responsible for promoting human growth hormone production,[2] which controls muscle growth and, simultaneously, helps reduce fat.

Emerging science reports are discovering the benefits of peptides to improve muscle mass and strength – two key elements to help treat muscle wastage. Muscle wastage or muscle atrophy is when muscle mass declines. Signs of muscle wastage can be:

-weakness in one arm or a leg

– difficulty balancing and walking

-facial weakness

-finding it hard to swallow or speak

-memory problems

What Is Muscle Wastage?

Muscle Wastage is when muscle tissue becomes thin or disappears altogether. It can make muscles appear smaller than usual and cause a loss of strength. The main sign of muscle atrophy is age, lifestyle, genetics, and some health problems. Common symptoms of muscle wastage are numbness, tingling, and weakness in the legs and arms. If muscle atrophy is in the face, it can cause difficulty swallowing and speaking.

What Causes Muscle Atrophy?

There are different types of muscle atrophy; for example, Disuse atrophy is when the muscles are not used enough. With this, the body will not waste valuable energy on them; ultimately, it will begin to break the muscles causing shrinkage in size and loss of strength. Many reasons can lead to Disuse atrophy, such as:

  • Lack of movement from a health problem, i.e. stroke
  • Age-related atrophy (sarcopenia)
  • Sedate lifestyle
  • Desk jobs
  • Rest
  • Not doing any form of exercise
  • Muscle diseases: muscular dystrophy or Charcot-Marie-Tooth disease

How Soon Can Muscle Wastage Happen?

Muscle atrophy can happen in as little as three weeks if not using them. Other than that, the time frame depends upon age and physical health.


There are various ways to diagnose muscle atrophy; physical examinations measuring muscle mass in limbs, blood tests, EMG, X-rays, biopsies in muscles and nerves, CT, and MRI scans.


You can sometimes turn muscle wastage around with a healthy diet and exercise. Workouts in water are best to avoid nerve damage. It can still help to eat healthily and exercise with care for more severe disorders. Neurogenic atrophy can be helped with electrical stimulation, where electrodes send electrical pulses to muscles and nerves. It can help keep muscle mass and strength. Physical therapists can help advise on help to promote muscle healing.

Best Research Injectable Peptides For Muscle Growth

Peptides work in different ways. In the case of increasing muscle, the growth hormone secretagogues or GHS are the types responsible for promoting human growth hormone production,[2] which controls muscle growth and helps reduce fat. Many research peptides can support muscle growth; they include:

Hexarelin Peptide

Hexarelin is a research peptide that amplifies the human growth hormone, which assists in cell rejuvenation and increases muscle mass and strength. It is a potent research peptide that activates ghrelin receptors in the brain to release growth hormones. From research, Hexarelin[3] shows promising results in protecting the heart, which could help treat various heart conditions in the future.

Peptide Ipamorelin

Ipamorelin works similarly to Hexarelin by actioning the ghrelin receptor in the pituitary gland in the brain to encourage human growth hormone (HGH) release. This process means Ipamorelin increases muscle and strength and strengthens bones and ligaments. As well as this, Ipamorelin[4] reduces fat cells, promotes fat loss, and aids aging conditions.

Best Peptides for Muscle GrowthFollistatin For Muscle Growth

Follistatin is a naturally occurring peptide that acts as a myostatin inhibitor, a natural muscle growth inhibitor. It effectively boosts muscle growth and strength faster due to stimulating cell growth. Fortunately, with the natural follistatin,[5] the artificial peptide Follistatin-344 was created. In studies, this is effective in increasing muscle mass and strength, as well as positively influencing gene therapy. Scientists hope it could be a promising treatment for muscle wastage disease.

Muscle wastage disease is when you do not use your muscles enough. It is typically due to age, malnutrition, medical problems, insufficient exercise, and genetics.

Benefits Of CJC-1295

CJC-1295 is a research peptide that is highly effective in encouraging the body to release its growth hormone to increase muscle mass and strength. Natural growth hormone declines from the early thirties and causes age-related conditions. From studies, the peptide CJC-1295[6] amplifies the growth hormone massively; some reports suggest between 200-1000%. Research reports find CJC-1295/Ipamorelin blend provides even better results in muscle growth.

Additional studies show CJC-1295 benefits can include:

  • Boosting fat loss and weight loss
  • Improves healing
  • It helps with mood and sleep
  • Increases collagen and reduces wrinkles
  • Builds lean muscle
  • Boost memory and cognitive function
  • Promotes energy

A Look At BPC 157

BPC 157 is an artificial peptide that comes from a protein in the body and helps protect the gastrointestinal tract. The research pentadecapeptide is still in the early stages of studies but shows promising results in stimulating blood vessel growth, healing wounds, hormone growth, and improving the immune system. BPC 157 has outstanding regeneration and healing properties that can heal fast.

About IGF-1

IGF-1 is the principal negotiator of human growth hormone (HGH) to insulin receptors and its receptors to give better cell growth all over. IGF-1 LR3 is the synthetic version and boosts activity on the IGF. From research, it has many positive influences on almost all the cells in the body, including increasing muscle growth, bone health, kidney, liver and lung cells. New research shows it is effective on hormone-related conditions.

A Guide To Tesamorelin

Tesamorelin is a research HGH (human growth hormone) that stimulates growth hormone-releasing hormone in the body. TH9507 or Tesamorelin[7] boosts metabolism and can lower appetite ultimately promoting fat loss. It  can breakdown fatty lipids and triglycerides, a process known as lipolysis. A process where enzymes and water destroy fat, Lipolysis happens in fat tissue stores that protect internal organs. Fat can be considered as stored energy. In short, fat is stored energy.

Best Peptides for Muscle GrowthWhy Is HGH Important For Muscle Growth?

Research with peptides determines that growth hormone secretagogues are the most effective at increasing muscle growth simply because they influence the production of HGH (human growth hormone) that assists muscle growth.[8]

The HGH, or human growth hormone, is essential for growth from childhood and adolescence to maintaining healthy organs and tissue as an adult. If HGH levels decrease, then health problems can occur in children and adults.

The body is complicated, and HGH doesn’t do this alone; it needs the molecule growth hormone-releasing hormone or GHRH to control it from the pituitary gland in the brain into the blood. Doctors can diagnose low levels of HGH through blood tests. Then usually, a doctor will recommend the right path for medication. In research cases Sermorelin looks a positive step forward for these conditions.

Is Sermorelin Among The Best Peptides For Muscle Growth And Fat Loss?

In research sermorelin injections[9] can help however there is little information on studies with humans to date. Investigations on humans with sermorelin are few. But examinations show sermorelin benefits include treating children with a hormone deficiency, increasing lean muscle mass, fat loss and some cancers. Additional benefits  are improving bone health, the immune system, insulin sensitivity and libido.

Why Use – Injectable Peptides For Muscle Growth

Peptides are a new medicine area with many uses, such as anti-aging, immune function, gut healing, tissue repair, and muscle wastage[10]. Sadly, most research peptides are still in the early stages of clinical trials and need much more investigating, so they are not for human consumption. A significant setback with most of these research peptides is the administration. The route that most peptides use is a subcutaneous injection under the skin. Because peptides link to food, the intestines, stomach enzymes can degrade them, so they don’t survive the route through the gastrointestinal.

Why Is Muscle Mass So Important?

Muscle mass is vital for a long, healthy life; unfortunately, it slowly declines with age. If there is no muscle, it gets replaced by fat tissue. No muscle makes the body vulnerable and susceptible to wasting diseases. Some cellular regeneration injections[11] are available as a treatment, but for most people, doctors suggest diet and exercise first. Thus, research with peptides is ongoing to discover a new treatment to help improve these diseases.

Best Peptides for Muscle GrowthWhat Is The Best Peptide For Muscle Growth And Fat Loss?

New research formulas are constantly appearing, and one of the best oral peptides for muscle growth is MK-677 capsules. Ibutamoren/ MK-677 capsules are the more recent, accessible alternative to peptide injections for research. The MK-677 capsules are still only for study, but it shows progress in the laboratories in improving the administration of peptides. MK-677[12] can increase human growth hormone to promote muscle increase and help treat growth hormone deficiencies. The additional bonus of MK-677 is it helps with fat loss and improves the health of bones.

Tips To Build Muscle And Strength And Avoid Muscle Wastage

Whilst the research industry works hard to find new treatments for chronic diseases[13], it can be good to try preventative methods. Experts recommend getting active at least twice weekly, combining aerobic exercise, resistance exercise and balance training. However, any exercise helps to avoid these age-related conditions. 

Another way to build muscle mass is to eat healthily. Don’t skip meals and snacks; eating smaller portions more often can stop the urge to raid the refrigerator. First, drink water; it is detoxifying and cleanses your system and a lot more healthy than soda, and caffeine. Changing your diet and eating more protein every meal helps build muscle. Add in more healthy fats, fruit and vegetables into your daily diet. Its worth noting athletes and bodybuilders[14]who build muscle and strength for a living only eat carbohydrates after exercise. While many have additional protein supplements to increase muscle. 

These tips will certainly help but if you think you have any symptoms of a muscle wastage condition make sure you see your medical practitioner.

Best Peptides For Muscle Growth Latest News 2023…

The landscape of peptide therapeutics is undergoing a remarkable evolution as evidenced by recent news indicating substantial growth. Over the course of just one year, from 2022 to 2023, the global peptide therapeutics market expanded impressively from $37.26 billion to $40.7 billion, reflecting a notable compound annual growth rate (CAGR) of 9.2%. This surge is a testament to the increasing recognition and demand for the efficacy of peptide-based treatments across various medical fronts. Projections for the near future are equally promising, with forecasts suggesting that by 2027, the peptide therapeutics market will attain a valuation of $58.75 billion, maintaining its upward trajectory with a projected CAGR of 9.6%. This growth trajectory underscores the escalating confidence in peptide therapeutics as a formidable avenue for addressing diverse health challenges and underscores its integral role in the pharmaceutical landscape.


We bring this information to you for general knowledge purposes about research products and their uses. The  medical problems discussed are for information use only. The products available on this website are for education and research use only. They are not for human consumption or use on animals. We supply Peptide Sciences products for laboratory research and not for any diagnostic, therapeutic or in vivo use on animals or the human body. Every product we sell is manufactured according to the research industry guidelines. This post may contain affiliate links but at no extra cost to you the buyer. Plus, external links for further resources. See our disclaimer here. For more read about us and our privacy policy.


[1] Global pharmaceutical industry – statistics & facts

[2] Growth hormone

[3] The effect of repeated administration of hexarelin, a growth hormone releasing peptide, and growth hormone releasing hormone on growth hormone responsivity

[4] Ipamorelin, the first selective growth hormone secretagogue

[5] Follistatin

[6] Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults

[7] Tesamorelin Injection

[8] How to build muscle with exercise


[10] Peptide‐2 from mouse myostatin precursor protein alleviates muscle wasting in cancer‐associated cachexia Ojima C[Author]

[11] Cell Therapy: Effect of Locally Injected Mesenchymal Stromal Cells Derived from Bone Marrow or Adipose Tissue on Bone Regeneration of Rat Calvarial Defects Author Freitas GP

[12] MK-677, an orally active growth hormone secretagogue, reverses diet-induced catabolism Author Murphy MG

[13] Research hypotheses on muscle wasting, aging, loss of function and disability

[14] Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation