Compare Peptides & Treatments
Peptides are short chains of amino acids that act as signaling molecules in the body - telling cells to repair tissue, calm inflammation, or regulate metabolism and hormones. The comparisons below put evidence, cost, and suitability next to each other. They are reviewed by board-certified neurologist Dr. Charles Kamen, MD, but a comparison cannot tell you which option is safe or appropriate for you. That takes a medical evaluation.
Medically reviewed by Charles Kamen, MD, board-certified neurologist ·
Side-by-Side Comparisons
Semax vs Selank
Two cognitive peptides compared by a board-certified neurologist - the difference matters.
BPC-157 vs TB-500
Two recovery-focused peptides compared - and why they are sometimes considered together.
Sermorelin vs Ipamorelin
GHRH vs GHRP - two growth-hormone-support peptides, compared.
Tirzepatide vs Retatrutide
A dual-hormone medication available today vs an investigational triple-hormone agonist - compared by a physician.
MK-677 vs Ipamorelin: FDA Status and Evidence
Two growth hormone secretagogues compared on FDA status and evidence. Educational only.
NAD+ vs NMN
The coenzyme vs its precursor - IV NAD+ and oral NMN, compared.
CJC-1295 vs Sermorelin
Two growth-hormone-releasing peptides compared - how they differ and how a physician chooses.
Comparing Peptides & Treatments - FAQ
How do these comparisons help me decide?
Each comparison lays out, side by side, how two peptides or weight-loss medications differ in mechanism, what the evidence suggests, and where the limits are. Use them to prepare questions, not to choose a prescription. A physician makes that decision after reviewing your history, goals, and labs.
Is semaglutide or tirzepatide better for weight loss?
Semaglutide acts on the GLP-1 pathway, while tirzepatide acts on both the GLP-1 and GIP pathways. Which is more appropriate depends on your medical history, goals, and how your body responds - there is no single answer that fits everyone. Board-certified neurologist Dr. Charles Kamen, MD reviews your individual situation and recommends an FDA-approved option only when it is suitable.
Can you tell me which treatment is right for me online?
No. We are a physician practice, and a safe, individualized recommendation requires a real medical evaluation - your history, your goals, and your labs. These comparison pages are general education to help you ask better questions. The actual decision is made with Dr. Kamen after an $88 evaluation.
Are the medications and peptides you compare available in Las Vegas?
FDA-approved medications and appropriate peptides can be prescribed in Las Vegas after a medical evaluation, when they are suitable for you. Some compounds discussed in comparisons remain investigational and are not dispensed as standard prescriptions. Dr. Kamen will tell you plainly what is available and appropriate for your situation.
Ready to start your longevity care?
Book your $88 evaluation with Dr. Kamen today, online, by phone, or by text.
Prefer to talk? Call (702) 808-2650 or text us to book.
Also serving Henderson - or explore semaglutide weight loss in Las Vegas.