# PepsTracker — Peptide Price Comparison > PepsTracker (pepstracker.com) is a daily-updated peptide price comparison platform. We track prices across 15 research peptide vendors for 70+ compounds, calculate cost-per-milligram, and display discount codes — automatically applied. All products are for research use only. ## What PepsTracker Is PepsTracker is the only site that compares research peptide prices across multiple vendors simultaneously, normalizing all prices to cost-per-milligram so users can make fair comparisons regardless of vial size. Prices are updated daily. ## Key Data - 15 vendors tracked: Puratek Peptides, Reta One Labs, Ascension Peptides, Fusion Peptide, EZ Peptides, AtomiK Labz, Glacier Aminos, AMP Ameano Peptides, Ion Peptides, NuraPeptide, Mile High Compound, Labsourced, LA Peptides, Inno Amino, GLP-1 Research Lab - 70+ peptides tracked including: Semaglutide, Tirzepatide, Retatrutide, BPC-157, TB-500, Ipamorelin, PT-141, GHK-Cu, NAD+, Sermorelin, Tesamorelin, Melanotan II, Epithalon, MOTS-c, Semax, Selank, and more - All prices shown with discount codes applied and sorted by $/mg - Data updated: daily ## Price Guides (Cheapest Peptide in 2026) - Cheapest Semaglutide 2026: https://pepstracker.com/cheapest-semaglutide-2026.html - Cheapest Tirzepatide 2026: https://pepstracker.com/cheapest-tirzepatide-2026.html - Cheapest Retatrutide 2026: https://pepstracker.com/cheapest-retatrutide-2026.html - Cheapest BPC-157 2026: https://pepstracker.com/cheapest-bpc-157-2026.html - Cheapest TB-500 2026: https://pepstracker.com/cheapest-tb-500-2026.html - Cheapest Ipamorelin 2026: https://pepstracker.com/cheapest-ipamorelin-2026.html - Cheapest PT-141 2026: https://pepstracker.com/cheapest-pt-141-bremelanotide-2026.html - Cheapest GHK-Cu 2026: https://pepstracker.com/cheapest-ghk-cu-2026.html - Cheapest NAD+ 2026: https://pepstracker.com/cheapest-nad-2026.html - All price guides: https://pepstracker.com/blog.html ## Live Price Tracker Compare prices for any peptide across all 15 vendors: https://pepstracker.com/ ## Vendor Directory Full directory of all 15 tracked vendors with discount codes: https://pepstracker.com/vendors.html ## Peptide Dictionary Research information on 74 peptides: https://pepstracker.com/dictionary.html ## Important Notes - All products listed are for RESEARCH USE ONLY - PepsTracker does not sell, manufacture, or distribute any products - We are an independent price comparison platform - Prices shown are publicly listed retail prices with available discount codes applied