{"schemaVersion":"litmus-open-data-2026-07-20","methodologyVersion":"1.0.0","entityId":"vendor:nextday-peptides","recordType":"seller_record","entityType":"seller_record","assessmentScope":"Research-product seller evidence","recordScope":"Research-product seller evidence","slug":"nextday-peptides","name":"Nextday Peptides","canonicalRecord":"/vendors/nextday-peptides","canonicalDataRecord":"/api/vendors/nextday-peptides","relatedRecords":[],"websiteUrl":"https://nextdaypeptides.com/","side":"unvalidated","reason":"Research catalogue uses 4 prescription-medicine ingredient names; this is not a verified human-use route","note":"Domain registered 12 Nov 2025","rule":"Validated means we independently verified the evidence — an official register entry or a lab report that checks out against the source. Unvalidated means we could not verify it yet. It is a statement about our evidence, not an accusation.","verdict":"Its domain was registered in November 2025 (less than a year old); we have not checked a company register for it, because it states a United States jurisdiction and PepCred currently checks only the UK Companies House register; 6 of 8 transparency signals were found on its own published pages. With no independent lab results or verified community reviews yet, Litmus publishes these public-record facts but does not yet assign an overall trust score.","evidence":{"tier1":{"title":"Independent verification","sub":"Hard-to-fake records we checked at the source — registers, the ICANN domain record, independent lab verification, regulator actions.","tag":"Tier 1 · high weight","rows":[{"signal":"Domain age","finding":"Registered 12 Nov 2025 — 9 months ago, via HOSTINGER operations, UAB. Under a year old — a common new-seller caution.","howWeChecked":"Domains under 12 months old are a new-seller caution. An older registration is context only because domains can change owners. The date comes from public ICANN RDAP.","tone":"warn","sources":[{"href":"https://rdap.org/domain/nextdaypeptides.com","label":"ICANN RDAP record"}]},{"signal":"Company register","finding":"A jurisdiction-appropriate official business record has not been matched for Nextday Peptides.","howWeChecked":"UK sellers are checked against Companies House. US sellers need an exact state or federal entity record; PepCred does not apply UK registration rules to them.","tone":"neutral","sources":[]},{"signal":"Prescription gatekeeping","finding":"The dated seller-catalogue snapshot uses 4 active-ingredient names also found in approved prescription medicines (Semaglutide, Tirzepatide, Tesamorelin, SS-31); the research listing does not inherit the branded medicine's approval and is presented under a “research use only” disclaimer. Lists 1 substance regulators have warned the public against (Melanotan II). Lists 2 investigational drugs with no approved formulation (Retatrutide, Cagrilintide).","howWeChecked":"A hard fail requires direct human-use or no-prescription conduct on the seller's site, or an official adverse event, plus a dated product-status receipt. An ingredient name never inherits a branded medicine's approval.","tone":"bad","sources":[{"href":"https://nextdaypeptides.com/","label":"Seller catalogue"},{"href":"/compounds/semaglutide","label":"Semaglutide · product status"},{"href":"/compounds/tirzepatide","label":"Tirzepatide · product status"},{"href":"/compounds/tesamorelin","label":"Tesamorelin · product status"},{"href":"/compounds/ss-31","label":"SS-31 · product status"},{"href":"/compounds/melanotan-ii","label":"Melanotan II · product status"},{"href":"/compounds/retatrutide","label":"Retatrutide · product status"},{"href":"/compounds/cagrilintide","label":"Cagrilintide · product status"}]},{"signal":"Legal compliance","finding":"Potential medicines-law risk. Our dated catalogue check recorded 4 prescription-only medicines (Semaglutide, Tirzepatide, Tesamorelin, SS-31), and 1 substance regulators have warned the public against (Melanotan II) in a direct research-sales catalogue, while no regulated prescriber and dispensing-pharmacy route was matched. UK rules generally restrict the supply of prescription-only medicines. This is a factual risk flag, not a legal determination about the seller. The site uses a “research use only” label. That label does not itself establish that a sale complies with medicines law.","howWeChecked":"We flag the observed catalogue facts against official medicines guidance. This is a prompt to check the regulator sources, not a legal judgment about the seller.","tone":"bad","sources":[{"href":"https://www.legislation.gov.uk/uksi/2012/1916/contents/made","label":"UK Human Medicines Regulations 2012"},{"href":"https://www.gov.uk/government/news/buying-medicines-online","label":"MHRA — buying medicines safely"}]},{"signal":"Independent lab verification","finding":"No independent lab results on file yet.","howWeChecked":"Only independent HPLC/MS results count toward a lab score. A vendor's own certificates of analysis are shown but never unlock a score — they're too easy to cherry-pick.","tone":"neutral","sources":[]},{"signal":"Regulator actions","finding":"No regulator actions against this vendor are on record in the sources we monitor.","howWeChecked":"We surface published actions from the FDA, MHRA and other regulators. Absence reflects the sources we monitor, not a clean bill of health.","tone":"neutral","sources":[]}]},"tier2":{"title":"Forensics","sub":"Circumstantial signals that are hard to fake at scale — operator fingerprints, what the seller publishes, payment routes.","tag":"Tier 2 · medium weight","rows":[{"signal":"Transparency crawl","finding":"6 of 8 transparency signals were published on the vendor's own site (crawled 31 Jul 2026).","howWeChecked":"Counts only signals the vendor actually publishes — named lab, batch COAs, shipping origin, working support, and so on. “Not found” earns no credit but is never scored as a failure.","tone":"neutral","sources":[{"href":"https://nextdaypeptides.com/","label":"crawler snapshot"}]},{"signal":"Verified reviews","finding":"No verified community reviews yet.","howWeChecked":"We need at least 3 credible, non-manipulation reviews before any experience score is shown. Trustpilot-style star scores are excluded by design — they're the easiest signal to fake.","tone":"neutral","sources":[]},{"signal":"Shared-operator network","finding":"No shared-operator fingerprint was detected among the signals we checked.","howWeChecked":"We look for shared naming, templates and infrastructure across brands. A clean result reflects the signals we checked, not a guarantee of independence.","tone":"neutral","sources":[]},{"signal":"Payment forensics","finding":"Accepts: Card, Bank transfer, Cryptocurrency, Peer-to-peer transfer.","howWeChecked":"Stable card processing means a payment processor did some KYC — a weak positive. Crypto-only / transfer-only payment is a caution because there is no chargeback recourse. Read from the seller's own published pages.","tone":"neutral","sources":[]}]},"tier0":{"title":"The vendor's own claims","sub":"Shown for completeness only. A seller controls these completely, so they earn zero trust weight — a claim is not a verification.","tag":"Tier 0 · no trust weight","rows":[{"signal":"Vendor's own COA","finding":"Publishes its own certificate-of-analysis documents.","howWeChecked":"A vendor-published COA is the vendor's own claim — cherry-pickable and copyable — so it earns no trust weight. It would move to Tier 1 only if the report number verified against the lab's own records.","tone":"neutral","sources":[{"href":"https://nextdaypeptides.com/coas/","label":"vendor's own COA — their claim"}]},{"signal":"“Research use only” label","finding":"Labels products “research use only” on its own site.","howWeChecked":"A self-applied RUO label is the vendor's own wording. It earns no trust weight, and it does not change what the law requires for a prescription-only medicine.","tone":"neutral","sources":[]},{"signal":"Stated ship origin","finding":"States it ships from United States.","howWeChecked":"Ship origin is self-reported by the seller and is not independently verified — displayed as their claim only.","tone":"neutral","sources":[]},{"signal":"Star-review scores","finding":"We do not collect or display Trustpilot-style star scores for this or any seller.","howWeChecked":"Star-review walls can be bought, brigaded or review-gated, and a real one can't be told from a manipulated one at source — so they earn zero trust weight here by design.","tone":"neutral","sources":[]}]}},"compoundsCarried":[{"name":"5-Amino-1MQ","slug":"5-amino-1mq","legalClass":"unapproved"},{"name":"AOD-9604","slug":"aod-9604","legalClass":"unapproved"},{"name":"BPC-157","slug":"bpc-157","legalClass":"unapproved"},{"name":"Cagrilintide","slug":"cagrilintide","legalClass":"investigational"},{"name":"CJC-1295","slug":"cjc-1295","legalClass":"unapproved"},{"name":"Epitalon","slug":"epitalon","legalClass":"unapproved"},{"name":"GHK-Cu","slug":"ghk-cu","legalClass":"cosmetic"},{"name":"Ipamorelin","slug":"ipamorelin","legalClass":"unapproved"},{"name":"Melanotan II","slug":"melanotan-ii","legalClass":"warned"},{"name":"MOTS-c","slug":"mots-c","legalClass":"unapproved"},{"name":"NAD+","slug":"nad-plus","legalClass":"supplement"},{"name":"Retatrutide","slug":"retatrutide","legalClass":"investigational"},{"name":"Selank","slug":"selank","legalClass":"unapproved"},{"name":"Semaglutide","slug":"semaglutide","legalClass":"approved_rx"},{"name":"Semax","slug":"semax","legalClass":"unapproved"},{"name":"Sermorelin","slug":"sermorelin","legalClass":"unapproved"},{"name":"SS-31","slug":"ss-31","legalClass":"approved_rx"},{"name":"TB-500","slug":"tb-500","legalClass":"unapproved"},{"name":"Tesamorelin","slug":"tesamorelin","legalClass":"approved_rx"},{"name":"Thymosin Alpha-1","slug":"thymosin-alpha-1","legalClass":"unapproved"},{"name":"Tirzepatide","slug":"tirzepatide","legalClass":"approved_rx"}]}