{"id":"2026-09","title":"September 2026","status":"rolling","generatedAt":"2026-09-07T00:00:00.000Z","dataThrough":"2026-09-07","index":{"value":127.93,"change7dPercent":1.06,"change28dPercent":0.4,"changeSinceStartPercent":27.93,"baselineDate":"2026-06-03","comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},"coverage":{"trackedPeptideCount":68,"canonicalFirstSnapshotAt":"2026-06-02","canonicalLastSnapshotAt":"2026-09-07","canonicalSnapshotCount":97,"currentComparablePeptideCount":61,"fixedCohortPeptideCount":24,"currentVendorObservations":2314,"currentOfferObservations":3547},"breadth28d":{"down":26,"flat":20,"up":15,"comparablePeptideCount":61},"biggestDrops":[{"peptideSlug":"pe-22-28","peptideLabel":"PE-22-28","currentMedianEffectivePerMg":4.5,"currentLowEffectivePerMg":0.96,"vendorCount":16,"offerCount":21,"change7dPercent":0,"change28dPercent":-15.25,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"na-selank-amidate","peptideLabel":"N-Acetyl Selank Amidate","currentMedianEffectivePerMg":3.33,"currentLowEffectivePerMg":1.12,"vendorCount":9,"offerCount":10,"change7dPercent":0,"change28dPercent":-11.32,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"survodutide","peptideLabel":"Survodutide","currentMedianEffectivePerMg":8.9496,"currentLowEffectivePerMg":3.78,"vendorCount":13,"offerCount":14,"change7dPercent":0,"change28dPercent":-10.5,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"ll-37","peptideLabel":"LL-37","currentMedianEffectivePerMg":9,"currentLowEffectivePerMg":2.08,"vendorCount":37,"offerCount":42,"change7dPercent":0,"change28dPercent":-10,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"cagrilintide","peptideLabel":"CP-1C","currentMedianEffectivePerMg":9.0396,"currentLowEffectivePerMg":2,"vendorCount":54,"offerCount":83,"change7dPercent":0,"change28dPercent":-8.69,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"5-amino-1mq","peptideLabel":"5-Amino-1MQ","currentMedianEffectivePerMg":2.375,"currentLowEffectivePerMg":0.54,"vendorCount":53,"offerCount":86,"change7dPercent":-5.38,"change28dPercent":-8.48,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"selank","peptideLabel":"Selank","currentMedianEffectivePerMg":4.41,"currentLowEffectivePerMg":0.88,"vendorCount":84,"offerCount":116,"change7dPercent":0.11,"change28dPercent":-7.93,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"dihexa","peptideLabel":"Dihexa","currentMedianEffectivePerMg":7.6491,"currentLowEffectivePerMg":0.78,"vendorCount":8,"offerCount":9,"change7dPercent":-0.01,"change28dPercent":-7.28,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"}],"biggestIncreases":[{"peptideSlug":"oxytocin","peptideLabel":"Oxytocin","currentMedianEffectivePerMg":7.9,"currentLowEffectivePerMg":0.83,"vendorCount":35,"offerCount":51,"change7dPercent":5.33,"change28dPercent":37.02,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"ahk-cu","peptideLabel":"AHK-CU","currentMedianEffectivePerMg":0.55,"currentLowEffectivePerMg":0.165,"vendorCount":16,"offerCount":24,"change7dPercent":10,"change28dPercent":26,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"follistatin-344","peptideLabel":"Follistatin 344","currentMedianEffectivePerMg":138.99,"currentLowEffectivePerMg":99.99,"vendorCount":5,"offerCount":5,"change7dPercent":11.11,"change28dPercent":24.99,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"retatrutide","peptideLabel":"CP-3R","currentMedianEffectivePerMg":7.8167,"currentLowEffectivePerMg":1.2,"vendorCount":16,"offerCount":89,"change7dPercent":3,"change28dPercent":20.27,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"vilon","peptideLabel":"Vilon","currentMedianEffectivePerMg":2.6996,"currentLowEffectivePerMg":1.89,"vendorCount":10,"offerCount":13,"change7dPercent":0,"change28dPercent":9.08,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"adipotide","peptideLabel":"Adipotide","currentMedianEffectivePerMg":12.939,"currentLowEffectivePerMg":5.92,"vendorCount":4,"offerCount":6,"change7dPercent":0,"change28dPercent":8.38,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"livagen","peptideLabel":"Livagen","currentMedianEffectivePerMg":2.655,"currentLowEffectivePerMg":1.89,"vendorCount":6,"offerCount":9,"change7dPercent":0,"change28dPercent":8.26,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"pinealon","peptideLabel":"Pinealon","currentMedianEffectivePerMg":3.8,"currentLowEffectivePerMg":0.82,"vendorCount":34,"offerCount":45,"change7dPercent":5.56,"change28dPercent":3.75,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"}],"newMedianLows":[],"mostCompetitive":[{"peptideSlug":"bpc-157","peptideLabel":"BPC-157","currentMedianEffectivePerMg":5.3333,"currentLowEffectivePerMg":0.8,"vendorCount":100,"offerCount":193,"change7dPercent":-0.58,"change28dPercent":-3.03,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"mots-c","peptideLabel":"MOTS-c","currentMedianEffectivePerMg":3.995,"currentLowEffectivePerMg":0.8,"vendorCount":99,"offerCount":203,"change7dPercent":0.43,"change28dPercent":-0.12,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"ghk-cu","peptideLabel":"GHK-Cu","currentMedianEffectivePerMg":0.65,"currentLowEffectivePerMg":0.198,"vendorCount":98,"offerCount":188,"change7dPercent":0,"change28dPercent":-3.06,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"tb-500","peptideLabel":"TB-500","currentMedianEffectivePerMg":6.25,"currentLowEffectivePerMg":1.84,"vendorCount":86,"offerCount":135,"change7dPercent":1.17,"change28dPercent":1.82,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"ipamorelin","peptideLabel":"Ipamorelin","currentMedianEffectivePerMg":5.5984,"currentLowEffectivePerMg":0.88,"vendorCount":86,"offerCount":124,"change7dPercent":-1.78,"change28dPercent":-5.11,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"kpv","peptideLabel":"KPV","currentMedianEffectivePerMg":4.835,"currentLowEffectivePerMg":0.8,"vendorCount":85,"offerCount":110,"change7dPercent":-1.33,"change28dPercent":3.31,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"selank","peptideLabel":"Selank","currentMedianEffectivePerMg":4.41,"currentLowEffectivePerMg":0.88,"vendorCount":84,"offerCount":116,"change7dPercent":0.11,"change28dPercent":-7.93,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"pt-141","peptideLabel":"PT-141","currentMedianEffectivePerMg":4.2,"currentLowEffectivePerMg":0.8,"vendorCount":84,"offerCount":106,"change7dPercent":0,"change28dPercent":-2.03,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"nad-plus","peptideLabel":"NAD+","currentMedianEffectivePerMg":0.118,"currentLowEffectivePerMg":0.04,"vendorCount":83,"offerCount":147,"change7dPercent":4.06,"change28dPercent":3.51,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"tesamorelin","peptideLabel":"Tesamorelin","currentMedianEffectivePerMg":7,"currentLowEffectivePerMg":2.19,"vendorCount":83,"offerCount":147,"change7dPercent":0.01,"change28dPercent":0,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"semax","peptideLabel":"Semax","currentMedianEffectivePerMg":4.386,"currentLowEffectivePerMg":0.88,"vendorCount":83,"offerCount":116,"change7dPercent":-0.95,"change28dPercent":-0.95,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"},{"peptideSlug":"dsip","peptideLabel":"DSIP","currentMedianEffectivePerMg":5.4,"currentLowEffectivePerMg":0.93,"vendorCount":81,"offerCount":110,"change7dPercent":-0.29,"change28dPercent":-1.82,"comparison7dDate":"2026-08-31","comparison28dDate":"2026-08-10"}],"methodology":{"priceBasis":"Median effective USD per milligram across exact-comparability offers, using the discount rules recorded with each pricing snapshot.","indexConstruction":"Equal-weighted fixed cohort. Each eligible peptide is normalized to 100 at its first observation; daily index values average available normalized medians and require at least 70% cohort coverage.","cohort":"Peptides need at least 45 daily observations, coverage during the first seven days, at least two vendors at the baseline, a current observation, and at least three current vendors.","movers":"Seven- and 28-day changes compare current median effective price per milligram with the latest observation at or before the target date that also has at least three vendors, allowing a maximum two-day gap.","limitations":"This is a tracked-listing index, not a transaction-price index. Vendor mix, availability, quantities, discounts, and catalog coverage can change over time."},"cohort":{"id":"pbppi-v1-2026-08-06","fixedAt":"2026-08-06T00:00:00.000Z","memberCount":24,"minimumDailyCoverage":17}}