Peptide Price Lab calculates the real cost per milligram across every vendor — so you always know you're getting the best value on research peptides.
Compare Prices Now →Free · No account required · Research use only
Peptide Price Lab is a free browser-based tool for researchers who want an apples-to-apples comparison of peptide prices. Vendors sell in different vial sizes, concentrations, and units — which makes direct price comparison nearly impossible without doing math.
Peptide Price Lab does the math for you. Enter any number of products from any number of sources, and the tool instantly shows you the cost per milligram for each one, side by side. It also includes a bundle optimizer to help you hit free-shipping thresholds across multiple vendors.
Enter the vendors you use or want to compare. Add their shipping thresholds and promo codes.
Add products with their price, quantity, and unit size. The tool calculates cost per mg automatically.
Sort by per-mg price, filter by peptide, or run the Bundle Optimizer to plan the most cost-effective order.
A 5mg vial for $28 sounds cheaper than a 10mg vial for $45 — but it isn't. Per milligram, that "cheap" vial costs $5.60/mg vs. $4.50/mg for the larger one. Multiply that across a full research protocol and the difference is significant.
Vendors know this, which is why pricing is rarely presented per mg. Peptide Price Lab removes that friction entirely, giving you the one number that actually matters for comparison: cost per milligram.
Not sure where to start? Our research notes cover the most commonly tracked peptides — typical use cases, concentration ranges researchers use, and current price ranges across major vendors.
Yes, completely free. No account needed. Your data stays in your browser unless you choose to enable cloud sync.
Yes. The app is a Progressive Web App (PWA) — you can add it to your home screen on iOS or Android for a native-app-like experience.
You enter it. Peptide Price Lab is a calculator, not a live price database — this keeps it accurate and vendor-agnostic. You control what goes in.
No. Peptide Price Lab is designed for research purposes only. Nothing on this site constitutes medical advice.
Any vendor you add. There's no fixed list — you can add any source with a name, URL, and pricing info. See our Sources directory for vendors our community commonly tracks.