female athlete with flexed back muscles

Peptide Injections for Muscle Growth

female athlete with flexed back muscles

There are many reasons why muscle growth is essential. Beyond its aesthetic advantages, more muscle translates into various benefits, including healthier aging, improved physical performance, and improved metabolic activity. 1

Peptides present an exciting world of opportunities related to muscle growth.2 Peptide therapy leverages the power of peptide proteins to achieve optimal performance out of your body. Think of peptides as a skeleton key that can unlock many different bodily processes.

Let’s take a closer look at how peptide injections can improve muscle growth, the benefits of specific peptides on muscle, and if peptide therapy is safe for you.

How peptide injections improve muscle growth

Peptide therapy enlists specific peptides to “amplify” or “focus” a corresponding response within the body.

Growth hormone plays a significant role in muscle growth and development.3

needle taking serum from bottle

This process utilizes growth hormone secretagogues (GHS), a group of peptides that stimulate human growth hormone (HGH) production and distribution. The result is a performance-enhancing effect that can supercharge healthy nutrition and exercise lifestyles.4

Peptide injections consist of synthetic and naturally occurring peptides ideally suited to help with muscle groups. Depending on your goals, there are many types to consider, which we will get into a little later.

man with a thinking cloud

Benefits of peptide therapy for muscle growth

Although the study of peptide therapy related to muscle growth is relatively new, there is already a rapidly growing amount of literature on its potential benefits. Peptide therapy may provide a host of muscle growth benefits, including:

  • Stimulate the release of growth hormone secretagogues (GHS), the trigger for increased growth hormone production5
  • Boosting growth hormone secretion
  • Improved immune function, reducing the likelihood of missing out on muscle-building activities
  • Accelerated recovery and regeneration during and in between workouts6
  • Increased IGF-1 levels
  • Improved appetite through the activation of ghrelin makes it easier to achieve a caloric deficit

The field of peptide therapy and its benefits are regularly expanding. Using a combination of these powerful peptides may help with addressing multiple facets of muscle growth.

Peptide injections for muscle growth

The FDA approves many peptides for therapeutic use. Let’s take a closer look at peptides that present promising benefits for muscle growth.


Historically used to treat poor growth in children, this synthetic peptide also treats HGH deficiencies in adults. Data suggests that its ability to facilitate increased human growth hormone production may provide benefits such as improved lean body mass, increased insulin sensitivity, and improved libido.

medicine vials with a syringe


Used to reduce excess fat around the stomach in patients undergoing HIV treatment, the synthetic peptide Tesamorelin is made from growth hormone-releasing factor (GRF). This peptide may aid in improving body composition and fat distribution in adults.

medicine vials and a glove picking one up


This natural peptide is often associated with its ability to regulate ghrelin, also known as the “hunger hormone.” It can benefit muscle growth by controlling hunger and cravings, making it easier to make dietary choices, and may also help preserve muscle tissue.7

syringe taking fluid from a vial


A synthetic peptide that acts as a ghrelin receptor agonist and promotes growth hormone secretion. In clinical trials, it showed a significant increase in lean body mass.

8 It also increases appetite, producing a caloric surplus needed for muscle growth.

Muscle Growth Peptide used by a bodybuilder


A synthetic compound known as a growth hormone-releasing peptide and provides an ideal environment for muscle growth.

Ipamorelin is one of the few peptides that releases growth hormones without triggering the body’s stress response.

Girl working out muscle growth peptide


Another growth hormone-releasing peptide, Alexamorelin is a synthetic molecule that operates predominantly with the central nervous system.9 Alexamorelin affects the secretion of hormones such as cortisol, prolactin, somatotrophs, and adrenocorticotropin, all of which can affect muscle growth.

Peptide increases growth hormone, growth, plant


A synthetic peptide that has been proven effective at changing body composition, Hexarelin also affects the body’s production and release of growth hormone. Subjects that incorporated hexarelin saw a drop in body fat while increasing lean mass.10

Measuring belly after the use of peptides


CJC-1295 is a potent synthetic that increases levels of growth hormone and IGF-1. This peptide can sometimes stimulate protein synthesis and support muscle mass growth.11

vials and a syringe


A synthetic growth hormone-releasing peptide, GHRP-2 is a newer synthesis than GHRP-6. It can serve to limit the effects of growth hormone inhibitors like somatostatin.12 It activates ghrelin, which can help improve appetite.

syringe, mask and medicine vials


Also known as growth hormone-releasing peptide-6, this peptide activates ghrelin to facilitate increased growth hormone levels. This particular peptide leads to an increased release of insulin growth factor – 1, designed to produce anabolic responses in cells and tissues.13

pills, bottles and syringe

Other Peptides

The field of peptide therapy is overgrowing. Every year, more data is uncovered, providing additional benefits and use cases for peptides.

While consensus is still growing, a few more peptides show promise for improving muscle growth.

  • CJC-1293
  • GHRP-1
  • GHRP-3
  • GHRP-4
  • GHRP-5

Although these peptides have lesser-documented correlations to muscle growth, there is a strong likelihood that they have some effect on lean body mass because they belong to the growth hormone-releasing class of peptides. CJC-1293 is especially promising, given its unique pituitary pathway to increase growth hormone levels.14

Is peptide therapy safe?

For most people, peptide therapy is a safe solution that can produce positive changes within the body related to body composition and muscle growth. A 2018 study found that Growth Hormone Secretagogues were generally safe with few risks.15

However, as with any form of treatment, there are potential risks involved with peptide therapy. Adverse reactions to peptides are often due to the delivery mechanism. For example, products like topical creams may cause skin irritation. Injectable peptides can cause redness, swelling, or bruising at the injection site.

Although peptides are largely safe, it’s crucial to recruit the guidance of a medical professional. The FDA approves over sixty peptides; a medical professional can help you determine which will provide the maximum impact for your situation.

Final thoughts

When it comes to fitness and muscle growth, there is an abundance of information available. Sifting through the data and figuring out your goals’ best course of action can be overwhelming. Seeking the help of a medical professional can be highly beneficial to ensure safety, and a medical professional can dramatically shorten the timeframe for your muscle growth goals. They consider your medical history, current health, and the medication you are taking to determine the best course of peptide therapy for you.

The beauty of peptide therapy is that you can receive treatment in the comfort and privacy of your own home. A growing number of people are utilizing an in-home, self-injectable service like ours to save the trip to the doctor’s office and revolve treatment around their schedules. Paired with expert guidance, this is an ideal combination for many people.

If you want more information about receiving peptide therapy at home, we would love to show you ways to make it happen.

Peptide Shots - Frequently Asked Questions

What is included in our peptides injections?

There are many different peptide injections that we offer as part of a peptide therapy including sermorelin, DSIP, GHK-CU, BPC 157, PT-141 and CJC-1295 + Ipamorelin.


Sermorelin is a synthetic form of GHRH (growth hormone-releasing hormone) which controls the hGH (human growth hormone) and it’s recommended to people who have low levels of hGH. 

What is DSIP?

DSIP stands for Delta sleep-inducing peptide and it’s a peptide that has an impact on the neuromodulation and it’s typically found in the brain. It’s a nonapeptide that promotes healthy sleep.

What is GHK-CU?

The GHK-CU peptide is used for stimulating blood vessels and nerve outgrowth but it also increases collagen, elastin and glycosaminoglycan synthesis as well as supports the proper function of dermal fibroblasts. 

What is BPC 157?

BPC 157 is a peptide that can help you if you have joint pain or problems with joint mobility but it can also improve muscle recovery after an injury. It’s a peptide that can improve the vascular flow to the ligaments and tendons which helps with healing. 

What is PT-141?

PT-141 also referred to as bremelanotide, is a cutting-edge peptide hormone therapy that enhances sexual function in both men and women. In addition to treating female sexual arousal problem in women, PT-141 is an effective and efficient treatment for erectile dysfunction and enhanced libido in males.


Ipamorelin is a GHRP (growth hormone releasing peptide) and it incites the release of growth hormones from the pituitary gland. It’s used to improve the production of growth hormones which can help you grow muscle tissue. 

Why is a Telemedicine Consultation included?

A telemedicine consultation is included because it’s very important to consult with a medical professional before you decide on which peptide therapy is the right one for you.

How do peptides improve your sleep?

Serotonin is a neurotransmitter present in the brain that releases chemicals as messages to your brain and body that it is time to go to sleep. Some peptides can interact with serotonin. Serotonin regulation issues can definitely interfere with a person's ability to have a good night's sleep.

Both Sermorelin and CJC1295 are recognized for their potency as peptides that enhance sleep. Another technique for raising sleep quality is the administration of the peptide DSIP, or delta sleep inducing peptide.

How do peptides improve immune health?

The immune response can be either blocked or stimulated to produce tolerance using peptides and peptidomimetics as immunomodulating agents.

How do peptides speed up muscle and joint recovery?

They speed up muscle and joint recovery by stimulating the production of growth hormone which helps grow new cells and muscle fiber which ultimately speeds up recovery.  

How do peptides help with sexual performance?

Peptides are able to affect your nervous system directly and improve your sexual desire, arousal as well as increase the blood flow to your penis and prevent erectile dysfunction.  

How do peptides help with muscle growth?

Certain peptides are able to stimulate the production of the human growth hormone (HGH) which helps enhance muscle growth. 

What is the peptide therapy cost?

The cost of our peptide therapy starts from $400 per month. 

Do peptides help with weight loss?

Yes. By increasing the breakdown of fat cells, certain peptides may even aid in the reduction of body fat. Numerous avenues exist for peptides to help in weight loss. For instance, some peptides can increase HGH synthesis. When that happens you get more energy and power, which can enhance your exercises and aid in calorie burning. Additionally, it could hasten your recovery.

What are the benefits from Peptide Therapy?

There are many benefits from getting peptide therapy and the most significant ones are:

Get Peptides

Peptides are proteins that can be self-injected to replenish peptide levels that naturally decline with age. Treatments can provide health benefits such as muscle & joint recovery, improved sleep, immune health, and longevity


[1] McLeod M. - Live strong and prosper: the importance of skeletal muscle strength for healthy ageing;

[2] Martinez-Villaluenga C. - Peptides for Health Benefits 2019;

[3] Tavares ABW. - Effects of Growth Hormone Administration on Muscle Strength in Men over 50 Years Old.;

[4] Wang L. - Therapeutic peptides: current applications and future directions.;

[5] Sigalos J. - The Safety and Efficacy of Growth Hormone Secretagogues.;

[6] Goldstein A. - Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications.;

[7] Wu CS. - Protective Effects of Ghrelin on Fasting-Induced Muscle Atrophy in Aging Mice.;

[8] Nichie K. - Anamorelin for cancer cachexia.;

[9] Handelsman DJ. - Performance Enhancing Hormone Doping in Sport.;

[10] Mosa R. - Hexarelin, a Growth Hormone Secretagogue, Improves Lipid Metabolic Aberrations in Nonobese Insulin-Resistant Male MKR Mice.;

[11] Velloso CP. - Regulation of muscle mass by growth hormone and IGF-I.;

[12] Hu R. - Effects of GHRP-2 and Cysteamine Administration on Growth Performance, Somatotropic Axis Hormone and Muscle Protein Deposition in Yaks (Bos grunniens) with Growth Retardation.;

[13] Stratikopoulos E. - The hormonal action of IGF1 in postnatal mouse growth.;

[14] Teichman S. - 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.;

[15] John T. S. - The Safety and Efficacy of Growth Hormone Secretagogues;