Medically reviewed by Dr. Robert Rubin, MD. Last reviewed August 2026.
Dr. Robert Rubin offers physician-supervised peptide therapy at two locations in Florida:
Peptide Therapy in Naples Peptide Therapy in Tampa
Telemedicine appointments are available for patients across Florida, including the Tampa Bay Area, South Palm Beach, and North Broward.
Peptides are short chains of amino acids — the building blocks of proteins — that act as signaling molecules throughout the body. They instruct cells and tissues to begin specific repair and regeneration processes, from producing collagen and human growth hormone to regulating immune response, sleep cycles, sexual function, and fat metabolism. The body produces peptides naturally, but production declines with age. Peptide therapy replenishes specific peptides to restore the biological processes they govern.
As a category, peptides have been used in medicine for decades — including the treatment of diabetes, anemia, and autoimmune disease. Their application to healthy aging, body composition, sexual health, and recovery represents a more recent and rapidly growing area of regenerative medicine. Because peptides work by amplifying the body's own processes rather than overriding them with synthetic compounds, they carry a favorable safety profile and avoid many of the risks associated with hormone therapy directly.
Dr. Rubin uses peptides individually or in combination depending on your evaluation results and treatment goals. Each targets a distinct set of biological processes:
PT-141 acts on melanocortin receptors in the brain to improve sexual response, function, and libido in both men and women. It is one of the few sexual health treatments that works centrally through the nervous system rather than peripherally through blood flow — making it effective for patients who haven't responded to other sexual health interventions.
A growth hormone-releasing hormone (GHRH) analogue that stimulates the pituitary gland to increase natural human growth hormone production. Sermorelin improves body composition — reducing fat and increasing lean muscle mass — while also supporting energy, sleep quality, and physical performance. It achieves HGH-related benefits without the risks and costs associated with direct HGH therapy.
BPC-157 is derived from a protein found in the stomach and has a well-documented ability to accelerate healing of tendons, ligaments, muscles, and bone. It improves collagen production and increases blood flow to injured tissue. It is also used to treat gastrointestinal conditions including leaky gut and IBS.
These two growth hormone secretagogues are frequently combined because they work through complementary mechanisms to stimulate growth hormone release. Together they trigger muscle growth, improve metabolic function, enhance healing and recovery, and produce results more quickly than either peptide alone.
DSIP helps normalize disrupted sleep patterns, reducing the time it takes to fall asleep and increasing total sleep duration. It may also help manage pain and stress. Because sleep is when the body performs most of its repair and regeneration, improvements here reinforce the effects of other peptides in the plan.
NAD+ is a coenzyme essential to cellular energy production and DNA repair. It declines with age and its depletion has been linked to neurodegeneration, metabolic disease, and cancer. NAD+ therapy replenishes levels to support energy, cognitive function, and healthy cellular aging.
A prescription oral alternative to Sermorelin injections, Sarcotropin addresses age-related declines in human growth hormone, sex steroids, and essential nutrients — targeting sarcopenia, body composition, cognitive function, mood, and sleep through a combined approach.
Because the benefits depend entirely on which peptides are used, the range is broad. Depending on your treatment plan, peptide therapy may produce:
Most patients experience meaningfully improved energy and sleep within a few weeks. Full effects from body composition and other systemic changes typically develop over three to six months of consistent treatment.
Peptide formulations in sublingual tablets, pills, and sprays are widely marketed as supplements. The right peptides for a specific condition, however, should be prescribed by a physician with expertise in human health and hormonal systems — and administered using pharmaceutical-grade compounds at clinically effective doses. Over-the-counter peptide products are not subject to the same quality or dosing standards, and self-administering peptides without a clinical evaluation and medical monitoring carries real risks of inappropriate dosing and unintended effects. Dr. Rubin supervises all peptide therapy at Improving Your Health and adjusts protocols based on ongoing lab monitoring.
Through a functional medicine evaluation that covers your medical history, physical exam, and lab testing. The goal is to understand the root cause of your health concerns — not just which symptoms are present — so that the peptide selection is matched to what's actually driving them. No two protocols are the same.
Treatment type and duration are individualized. Some effects become apparent within a few weeks; others require three to six months of consistent treatment. When optimal levels are reached, therapy may continue at a maintenance dose, be discontinued, or shift to a different peptide targeting a new health goal. Dr. Rubin monitors your levels throughout and adjusts accordingly.
Duration depends on the specific peptides used, your overall health, age, and how the therapy is maintained over time. Regular follow-up consultations allow Dr. Rubin to catch any return of symptoms early and respond before they become significant.
Yes, and it frequently is. Peptide therapy works alongside BHRT, medical weight loss, PRP therapy, and other modalities depending on your goals. Combinations are built into the treatment plan where they produce complementary effects.
When prescribed and supervised by a physician, peptide therapy has a favorable safety profile. Peptides work by amplifying the body's own processes rather than replacing or overriding them, which distinguishes them from direct hormone replacement and reduces the risk profile. Candidacy is assessed individually — Dr. Rubin reviews your full history before recommending any protocol.
Dr. Rubin is ABIM Board Certified in Internal Medicine and Geriatrics Medicine and an Advanced Fellow in the American Academy of Anti-Aging Medicine. He spent the first 25 years of his career in internal and geriatric medicine, earning recognition from Castle Connolly Medical as one of the "Top Doctors" in South Florida for four consecutive years.
After completing a fellowship in anti-aging and regenerative medicine, he transitioned fully to functional medicine. Over the past 15 years he has built a practice grounded in evidence-based care — one that identifies what is driving each patient's health concerns before selecting any treatment, and uses peptide therapy as a precision tool rather than a blanket protocol.
Free consultations are available at both clinics and via telemedicine for patients anywhere in Florida.
Naples
840 111th Avenue North, Suite 5, Naples, FL 34108
(239) 977-9220
Peptide Therapy in Naples →
South Tampa
405 N. Reo St., Suite 162, Tampa, FL 33609
(813) 499-1440
Peptide Therapy in South Tampa →
