Key Takeaways
- Peptides are short chains of amino acids that act as signaling molecules, directing your cells to repair, regulate, and regenerate.
- Peptide therapy uses targeted peptides to address specific health goals, from weight loss to gut healing to hormone optimization.
- Dr. B’s Naples practice offers Sermorelin/Glycine, Semaglutide, and BPC-157 in both oral and injectable forms.
- Each peptide serves a distinct purpose; your provider evaluates your health history to recommend the right one.
- Peptide therapy works with your body’s existing biology rather than replacing or overriding it.
- All peptide therapies at Dr. B’s practice are integrated into a holistic, whole-patient treatment plan.
If you’ve been researching ways to support your energy, gut health, weight, or recovery, you’ve likely come across the term peptide therapy. It sounds technical, but the concept is rooted in something your body already does naturally. Peptides are present in every living cell, and your body produces thousands of them to coordinate everything from tissue repair to immune response. Peptide therapy simply harnesses that same biology, using targeted peptides to address specific gaps in how your body is functioning.
According to a review published in Nature’s Signal Transduction and Targeted Therapy, the global peptide therapeutics market grew from $41.44 billion in 2023 to $45.66 billion in 2024, a compound annual growth rate of over 10%, reflecting the rapid expansion of peptide research and clinical applications. As of 2025, nearly 100 peptide-based drugs have received regulatory approval worldwide, with more than 200 in active clinical development.
At Dr. B’s Naples practice, peptide therapy is not a one-size-fits-all protocol. It is part of an integrative approach to medicine, where the goal is to treat the whole patient, not just the condition. Below is a straightforward guide to the peptides currently offered and what each one can do for you.
What Is Peptide Therapy?
Peptides are short chains of amino acids, the same building blocks that make up proteins. While proteins are long, complex chains, peptides are smaller and more targeted. That specificity is what makes them therapeutically valuable: each peptide carries a particular biological message, telling specific cells or systems in the body to act.
Who Is a Candidate for Peptide Therapy?
Peptide therapy is a broad category, so candidacy depends heavily on which peptide is being considered and what health goals or conditions are being addressed. Generally, good candidates include adults who:
- Are experiencing age-related declines in energy, hormone production, or body composition
- Struggle with chronic gut issues like IBS, leaky gut, or acid reflux
- Have weight management goals that have not been met through diet and exercise alone
- Are recovering from soft tissue injuries, joint pain, or chronic inflammation
- Are you looking for a holistic, biology-based approach to long-term health
What Does Peptide Therapy Involve?
Therapy begins with a comprehensive evaluation at Dr. B’s practice. Your provider reviews your health history, symptoms, and goals to determine which peptide is appropriate and how to administer it. Delivery methods vary by peptide and include subcutaneous injections, oral capsules, and targeted joint injections. Ongoing follow-up ensures your protocol is adjusted as your body responds.
Peptides Offered at Dr. B’s Naples Practice: At a Glance
The table below summarizes the four peptide therapies currently available at Dr. B’s practice:
| Peptide | Primary Use | How Administered | Best For |
|---|---|---|---|
| Sermorelin / Glycine | Growth hormone optimization, weight loss, anti-aging | Subcutaneous injection (5 nights/week) | Adults with age-related GH decline, fatigue, poor sleep |
| Semaglutide | Chronic weight management, blood sugar regulation | Injectable or oral (as prescribed) | BMI 30+, or overweight with related conditions |
| BPC-157 (oral) | Gut healing, inflammation, injury recovery | Oral capsule | GI issues, chronic inflammation, soft tissue injuries |
| BPC-157 Joint Injections | Targeted joint and tissue regeneration | Direct injection into affected area | Joint pain, tendinopathy, post-injury recovery |
Sermorelin / Glycine: Hormone Optimization and Anti-Aging
As we age, the body’s natural production of growth hormone (GH) declines, a process that typically begins in your 30s and accelerates over time. Lower GH levels are associated with increased body fat, reduced muscle mass, disrupted sleep, and diminished energy. Sermorelin addresses this decline at the source.
How Sermorelin Works
Sermorelin is a synthetic peptide composed of the first 29 amino acids of growth hormone-releasing hormone (GHRH). Rather than introducing growth hormone directly, it stimulates your pituitary gland to produce and release its own GH naturally. This distinction matters because Sermorelin works through your body’s existing feedback systems; the risk of overdose or suppression is significantly lower than with direct GH replacement therapy.
Research published in the Journal of Clinical Endocrinology & Metabolism indicates that GH secretion naturally declines with age and that stimulating endogenous production with GHRH analogs, such as Sermorelin, improves the maintenance of lean muscle mass and reduces abdominal fat compared with control groups.
Potential Benefits
- Improved body composition, including reduced body fat and increased lean muscle mass
- Better sleep quality through optimization of the body’s natural GH release cycles
- Enhanced energy levels and reduced daytime fatigue
- Improved cognitive function and memory support
- Anti-aging effects, including improvements in skin thickness and texture
- Support for patients with diabetes through reduced fatigue and improved body composition
Glycine, an amino acid and neurotransmitter, is paired with Sermorelin to further optimize GH production. The two are taken together via subcutaneous injection five nights per week, administered 90 minutes after the last meal of the day, working in alignment with your body’s natural overnight GH release cycle.
Semaglutide: Medical Weight Management and Blood Sugar Regulation
Semaglutide has become one of the most clinically significant peptide-based therapies of the last decade. Originally developed for type 2 diabetes management, it has seen its applications expand considerably due to its effects on appetite, body weight, and metabolic function.
How Semaglutide Works
Semaglutide is a GLP-1 receptor agonist, meaning it mimics glucagon-like peptide-1, a hormone your gut releases after eating. It works by stimulating the pancreas to produce insulin in response to food, slowing digestion to promote satiety, suppressing appetite signals, and stimulating the growth of pancreatic beta cells that regulate blood sugar. The result is a meaningful reduction in caloric intake and a significant improvement in metabolic markers.
What the Research Shows
In the STEP 1 clinical trial, published in Diabetes, Obesity and Metabolism (Wiley), participants receiving semaglutide 2.4 mg once weekly achieved an average weight loss of 17.3% over 68 weeks, compared with 2.0% in the placebo group. Nearly half of the participants retained clinically meaningful weight loss even after treatment ended. The SELECT cardiovascular outcomes trial further demonstrated a 20% reduction in major cardiovascular events in patients with obesity and prior cardiovascular disease.
Who Is a Candidate for Semaglutide at Dr. B’s Practice?
- Adults with a body mass index (BMI) of 30 or greater
- Adults who are overweight with a related condition such as type 2 diabetes, high blood pressure, or elevated cholesterol
- Patients seeking a clinically supervised, medication-supported weight management approach alongside diet and lifestyle modifications
Dr. B prescribes Semaglutide as part of a comprehensive weight management plan, not as a standalone intervention. Patients are monitored throughout treatment to track progress and adjust the plan as needed.
BPC-157: Gut Health, Inflammation, and Full-Body Recovery
BPC-157, short for Body Protection Compound 157, is a peptide derived from a protein found naturally in gastric juice. It has been studied for over 30 years, with a substantial body of preclinical research pointing to its regenerative and anti-inflammatory properties throughout the body, particularly in the gastrointestinal tract.
How BPC-157 Supports Gut Health
Research published in the American College of Gastroenterology Journal (2025) reviewed 36 studies from 1993 to 2025 and found that BPC-157 enhances growth hormone receptor expression, modulates inflammatory pathways, and reduces inflammatory cytokines. In preclinical models, it improved outcomes in inflammatory bowel disease, GI ulcers, NSAID-induced injury, and fistula repair.
At Dr. B’s practice, BPC-157 is available in oral capsule form, making it accessible and straightforward to incorporate into a daily routine. It is particularly well suited for patients dealing with:
- Acid reflux, gastric ulcers, or chronic heartburn
- Irritable bowel syndrome (IBS), leaky gut, or malabsorption issues
- Colitis or inflammatory bowel conditions
- Chronic systemic inflammation linked to autoimmune or metabolic conditions
Beyond the Gut: Systemic Regeneration
BPC-157’s healing properties extend well beyond the digestive system. Research supports its role in accelerating recovery from soft tissue injuries, reducing joint inflammation, promoting tendon and ligament repair, and supporting lean muscle development when combined with exercise. It may also offer benefits for neurological health through the gut-brain axis.
For patients interested in Dr. B’s integrative approach to gut and immune health, BPC-157 pairs well with her broader peptide therapy protocols.
BPC-157 Joint Injections: Targeted Tissue and Joint Regeneration
For patients with specific joint problems, tendon injuries, or localized soft-tissue damage, Dr. B’s practice offers BPC-157 as a direct injection into the affected area. This targeted delivery concentrates the peptide’s regenerative effects exactly where they are needed most.
What BPC-157 Joint Injections Can Address
- Chronic joint pain, including knee, shoulder, and hip discomfort
- Tendinopathy and ligament injuries that have been slow to heal
- Post-injury soft tissue recovery as part of a broader rehabilitation plan
- Inflammation that limits range of motion or daily function
What to Expect
BPC-157 joint injections are administered in the office by Dr. B’s team. The procedure involves a targeted injection into the problem area, followed by an individualized follow-up plan to monitor healing and response. Because BPC-157 promotes angiogenesis (the formation of new blood vessels) and stimulates tissue regeneration, many patients report improvement in pain and function over the weeks following treatment.
Dr. B’s team will evaluate whether joint injections, oral BPC-157, or a combination approach best fits your specific presentation and goals.
How to Choose the Right Peptide for Your Goals
No two patients are the same, and no single peptide addresses every need. The best path forward starts with a thorough evaluation that considers your current symptoms, health history, lifestyle, and goals. Some patients benefit most from a single targeted peptide, while others respond well to a combination approach.
When you come in for a consultation, Dr. B’s team will:
- Review your full health history and current medications
- Order appropriate labs to establish baselines for hormones, metabolic markers, and inflammatory indicators
- Discuss your specific health goals and what you have already tried
- Recommend one or more peptides based on the full clinical picture
- Build a monitoring plan to track your progress and adjust as needed
If you are also exploring hormone optimization, peptide therapy pairs well with Dr. B’s hormone pellet therapy for a comprehensive approach to longevity and vitality.
Why Patients Choose Dr. B for Peptide Therapy in Naples, FL
Dr. Diane Brzezinski, D.O., FACOI, has spent her career focused on treating the whole patient rather than managing isolated symptoms. Her interest in peptide therapy developed from years of watching patients achieve only partial results with conventional approaches. Peptide therapy offered something different: the ability to work with the body’s own biology to promote genuine, lasting improvement.
What patients at Dr. B’s Naples practice can expect:
- A board-certified internal medicine physician with deep experience in integrative and functional medicine
- A comprehensive initial evaluation before any peptide protocol is recommended
- Individualized plans that may combine peptide therapy with hormone optimization, nutrition support, or other treatments
- Ongoing monitoring and follow-up to measure results and adjust care
- A practice known for discretion, attentive care, and patient-centered decision-making
Peptide therapy is not a shortcut or a trend. It is a science-backed, biology-driven approach to helping your body do what it was designed to do, more effectively and for longer.
Contact Dr. B’s office today to schedule your consultation and find out which peptide therapy is right for your health goals.
FAQs: Peptide Therapy
What is peptide therapy used for?
Peptide therapy uses targeted amino acid compounds to address specific health goals, including hormone optimization, weight management, gut healing, inflammation reduction, injury recovery, and anti-aging support. The specific application depends on which peptide is prescribed and the individual patient’s needs.
Is peptide therapy the same as hormone therapy?
Not exactly, though some peptides like Sermorelin work by stimulating the body’s natural hormone production. Hormone therapy typically involves replacing or supplementing hormones directly. Peptide therapy works upstream, signaling the body to regulate and produce its own hormones or healing factors. The two approaches can also be used together for broader benefit.
What is Sermorelin peptide therapy?
Sermorelin is a growth hormone-releasing hormone analog that stimulates the pituitary gland to produce more of the body’s own growth hormone naturally. It is used for anti-aging support, improved body composition, better sleep, and increased energy. At Dr. B’s practice, it is combined with Glycine and administered via subcutaneous injection.
What is peptide therapy for weight loss?
Semaglutide is the primary peptide therapy used for weight management at Dr. B’s practice. It is a GLP-1 receptor agonist that reduces appetite, slows digestion, and improves blood sugar regulation. It is prescribed alongside dietary and lifestyle modifications for patients with a BMI of 30 or greater, or those who are overweight with related health conditions.
What are the side effects of peptide therapy?
Side effects vary by peptide. Sermorelin may cause mild injection site reactions or temporary fatigue early in treatment. Semaglutide commonly produces mild gastrointestinal effects like nausea, which typically ease over time. BPC-157 has a favorable safety profile in research with minimal reported adverse effects. All protocols are supervised by Dr. B’s team, which monitors for any response and adjusts care accordingly.
How long does peptide therapy take to work?
Results vary by peptide and individual. Sermorelin patients often notice improvements in sleep quality within the first few weeks, with changes in body composition appearing over three to six months. Semaglutide typically produces meaningful weight changes within the first eight to twelve weeks. BPC-157 may provide noticeable relief of gut symptoms within the first four to eight weeks of consistent use. Dr. B’s team will set realistic expectations during your initial consultation.
How do I know which peptide is right for me?
The right peptide depends on your specific health goals, current symptoms, labs, and medical history. Dr. B’s team conducts a thorough evaluation before making any recommendations. Many patients benefit from a combination approach, particularly when addressing both hormonal and metabolic goals simultaneously. The best starting point is a consultation at Dr. B’s Naples practice.
