Compare Peptides for Weight Loss, Recovery & More
Data-driven tools to compare retatrutide, semaglutide, tirzepatide, and 20+ peptides. No marketing fluff -- just clinical data, real costs, and actionable information.
Peptide Research Tools
Everything you need to research peptides in one place. Compare options, estimate costs, and find the right fit.
Popular Peptide Comparisons
The most searched head-to-head peptide matchups. See how they compare on weight loss, side effects, cost, and FDA status.
Top Peptides by Popularity
The most researched and discussed peptides right now. Explore detailed profiles with clinical evidence, dosing, and pricing.
Browse by Category
Peptides are used across a wide range of medical and research applications. Find the category that matches your interest.
Why PeptideVS?
We built the peptide research tool we wished existed. No sponsored content, no affiliate links -- just data.
Evidence-Based
Data sourced from clinical trials, FDA databases, and peer-reviewed research. Every claim is backed by evidence.
Transparent Pricing
Real costs from multiple providers with no hidden fees. We do not sell peptides or receive commissions.
Unbiased Analysis
No sponsored rankings or paid placements. Every peptide is evaluated using the same objective criteria.
Regularly Updated
Latest FDA approvals, clinical trial results, and pricing changes tracked continuously so you always have current data.
Frequently Asked Questions About Peptides
Answers to common questions about therapeutic peptides, FDA approvals, costs, and how our comparison tools work.
What are peptides?
Peptides are short chains of amino acids that act as signaling molecules in the body. Therapeutic peptides like semaglutide, tirzepatide, and retatrutide are used for weight management, tissue repair, hormone optimization, and other medical applications. Some are FDA-approved prescription medications, while others are research compounds.
How do peptide comparison tools work?
PeptideVS aggregates clinical trial data, FDA records, and peer-reviewed research to provide objective side-by-side comparisons. You can compare peptides across key dimensions including efficacy (weight loss percentage), cost, side effect profiles, FDA approval status, and evidence quality ratings.
Are peptides FDA approved?
Some peptides are FDA-approved, including semaglutide (marketed as Ozempic and Wegovy), tirzepatide (Mounjaro and Zepbound), PT-141 (Vyleesi), sermorelin, and tesamorelin (Egrifta). Many others like retatrutide are in active clinical trials, while research peptides such as BPC-157 and TB-500 have not been submitted for FDA approval.
How much do peptides cost?
Peptide costs vary widely. FDA-approved GLP-1 medications like semaglutide and tirzepatide range from $1,000 to $1,500 per month at retail, though compounding pharmacies may offer lower prices. Research peptides like BPC-157 and TB-500 are significantly less expensive, typically $30 to $80 per month. Use our cost calculator for personalized estimates.
What is retatrutide?
Retatrutide (LY3437943) is a next-generation triple-receptor agonist developed by Eli Lilly that targets GIP, GLP-1, and glucagon receptors simultaneously. In Phase 3 clinical trials, it demonstrated an average of 28.7% body weight loss over 48 weeks, making it potentially the most effective weight loss peptide in development.
Ready to Research Peptides?
Start with a side-by-side comparison or take our eligibility quiz to find the right peptide for your goals.