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Peptide Therapy Q & A

When you experience declined energy, poor sleep, diminished strength, and a drop in libido, you could benefit from anti-aging strategies that include peptide therapy. At Colorado Ageless Institute located in Castle Rock, Colorado, Dr. Claude Fortin offers peptide therapy to reduce the symptoms of aging and help you experience optimal health. Call the office or request an appointment using the contact form to learn how you can thrive with peptide therapy.

What are peptides?

Peptides are small proteins, made up of amino acid chains. Research shows that you have more than 7,000 naturally occurring peptides in your body. Peptides function as signaling molecules that bind to receptors on your cell surfaces. They then give your cells and molecules instructions as to how to function.  Peptides are naturally occurring bio-regulatory chemicals in the body that act as master controls of many functions, including hormone production, cell signaling, and cell to cell communication. To date, over 7000 naturally occurring peptides have been identified in our bodies. Peptides serve as natural bio-regulators, able to up- or down-regulate processes dependent on the status of the cell.

Peptides are defined as amino acid molecules smaller than 50 amino acids, polypeptides between 50 and 100 amino acids in length, while proteins are greater than 100 amino acids in length. All three can be either natural, synthetic, or bio-identical.

Peptides have been categorized according to their sources and function. According to the Handbook of Biologically Active Peptides, some groups of peptides include antibiotic peptides, immune/inflammatory peptides, brain peptides, endocrine peptides, gastrointestinal peptides, cardiovascular peptides, and neurotrophic peptides.

Hormones act on nuclear receptors with resultant gene activation and protein synthesis. Peptides act on membrane receptors to activate an intracellular signaling cascade. As a result, peptide signaling molecules produce a more rapid response with fewer “side-effects” when compared to hormones.

Peptide therapy uses the patient’s own genetically designed peptide molecules for healing in a safe, and effective manner by modulating immune function, production of inflammatory mediators, DNA replication, apoptosis, cell division and renewal, tissue healing, circadian rhythm regulation, hormone production, etc. Therefore, peptides can address immune dysregulation, inflammation, and Reactive Oxygen Species (ROS) all of which underlie chronic illness and age-related decline. Peptides are more available in the past 5 years due to technological advances in creating them, with the associated lowering of production costs, increased duration of the biological effects, and improved stability (via PEGylation). As of today, there are approximately 7000 known peptides, 140 in phase 1 trials and 60 FDA-approved.  Many peptides are found in FDA-approved medications.


Peptide therapy involves the administration of peptides via subcutaneous injection, nasal sprays, oral tablets, or topical creams.  Peptides require a prescription.  Peptides should be sourced from vetted US compounding pharmacies that operate under governmental oversight.

Dr. Fortin reviews any symptoms and your wellness goals to determine if peptide therapy is right for you.  


Peptide therapy treats a variety of age-related conditions. These include:

  • Obesity

  • Osteoporosis

  • Chronic fatigue

  • Fibromyalgia

  • Autoimmune diseases

  • Mood changes and irritability

  • Decreases in muscle tone

  • Reduced skin elasticity and wrinkling

  • Poor sex drive and erectile dysfunction

  • Thinning, dull hair

Peptides as cellular signaling molecules can currently be used clinically for:

  • Hormone optimization

  • Weight loss

  • Increase lean body mass

  • Optimizing libido

  • Performance enhancement

  • Antimicrobial

  • Dermatological and esthetic enhancement

  • Optimizing healing and repair

  • Cognitive enhancement

  • Sleep facilitation

  • Up-regulation of telomerase activity

  • Restore the immune system's homeostasis

  • Reduction of anxiety and depressed mood


Peptide therapy can be a vital component of overall health optimization, in conjunction with hormonal and nutritional optimization.


Any healthy adult concerned about overall health and wellness may benefit from peptide therapy. The treatment is safe and effective in addressing a variety of concerns. Dr. Fortin reviews your symptoms and health goals to customize peptide therapy for you. Peptide therapy encompasses multiple options with different physiological effects. Dr. Fortin is able to prescribe the drugs that are most supportive of your health and wellness needs.

A consultation with Dr. Fortin at Colorado Ageless Institute is the best way to learn more about peptide therapy and its potential to revitalize your well-being. Call the office or request an appointment using the online tool to learn how peptide therapy can benefit you.


Purchasing peptides online, identified as "research only" or "not for human consumption" has inherent risks related to dosing, purity, presence of toxic contaminants.  These types are frequently sourced from non-regulated entities, in many cases overseas, including China.  To ensure you are getting the product, dosage, and therefore the results you want; we recommend visiting a licensed facility and having your peptide therapy administered by a certified peptide professional.  

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