Documented alternatives
Peptide Sciences Alternatives
Peptide Sciences posted a shutdown notice on March 6, 2026 and voluntarily ceased operations. Its own notice warns that sites claiming to be successors are fraudulent. Reporting citing Grips Intelligence estimated prior sales around $7.4 million per month, while no public enforcement action names the company.
Peptide Source Tracker is owned and operated by Curo, a research-peptide vendor that appears in these rankings. It is not affiliated with Peptide Sciences. Every vendor, including Curo, is scored by the same published methodology.
Read the documented Peptide Sciences review →Rubric checkpoints
What to look for instead
- 01Confirm current operationCheck the live domain and recent operating evidence instead of relying on a familiar or successor-style name.
- 02Prefer public documentationPer-lot COAs and verifiable reports score above documents available only on request or by claim.
- 03Keep a protected payment pathCard acceptance receives the highest payment-safety score; P2P-only checkout receives none.
Current operators
Compare all active vendors
Peptide Source Tracker is owned and operated by Curo. Curo is included in the comparison below.
| Rank | Vendor | Status | Testing | Payments | Score | Verified |
|---|---|---|---|---|---|---|
| 01 | Curocuro.you | Active | Public per-lot COAs from BT Labs and ILS Labs with lab verification links; earlier lots by Janoshik | card, ACH, and crypto | 10.0 | |
| 01 | EZ Peptidesezpeptides.com | Active | Public per-lot COAs verified through Janoshik Analytical task records | Visa, Mastercard, and American Express; no cryptocurrency | 10.0 | |
| 03 | Protide Healthprotidehealth.com | Active | Public per-batch archive with HPLC-UV, mass ID, and endotoxin data; lab unnamed | Visa, American Express, and Discover; Mastercard not accepted | 9.2 | |
| 04 | Simple Peptidessimplepeptide.com | Active | Public batch-traceable COAs; reported by Peptide Grades and Finnrick, unverified: testing-lab identity | Visa, Mastercard, and American Express | 8.8† | |
| 04 | Eternal Peptideseternalpeptides.com | Active | Public per-batch lab-test library covering purity, sterility, endotoxins, and heavy metals; lab unnamed | Credit/debit cards, Zelle, and Bitcoin | 8.8† | |
| 04 | PeakForm Peptidespeakformpeptides.com | Active | Public current-and-historical batch COA index; Freedom Diagnostics named | reported by Trustpilot, unverified: Zelle acceptance; card and cryptocurrency acceptance unknown | 8.8† | |
| 07 | Bluumbluumpeptides.com | Active | Public COA library claimed; Janoshik Analytical and BioRegen testing stated | Visa, American Express, and Discover; Mastercard not accepted | 8.3 | |
| 08 | American Peptidesamericanpeptides.us | Active | Public lot-number lookup with 126 lot-matched COAs; independent lab unnamed | Payment methods unconfirmed | 7.9† | |
| 08 | Prime Lab Peptidesprimelabpeptides.com | Active | Per-lot COAs from Freedom Diagnostics; selected products also carry Janoshik reports | Payment methods unconfirmed | 7.9† | |
| 08 | Peptirapeptira.com | Active | Public current-and-historical batch library; Janoshik named on historical reports | Payment methods unconfirmed | 7.9† | |
| 08 | Go Alpha Labsgoalphalabs.com | Active | Public downloadable COA page; reported by Peptide Critic community, unverified: Freedom Diagnostics testing | Debit/credit cards, e-check, and online wallets where available | 7.9† | |
| 12 | Ion Peptidesionpeptide.com | Active | reported by Peptide Grades, unverified: 50+ batch-specific COAs and Freedom Diagnostics testing | Credit/debit cards and ACH observed in the vendor FAQ; reported by BodyHackGuide, unverified: Bitcoin and USDC acceptance | 7.5† | |
| 12 | Coffee and Peppers Peptidescoffeeandpeppers.com | Active | reported by Finnrick, unverified: Kovera Labs and Freedom Diagnostics testing and COA claims | Major credit cards and PayPal | 7.5† | |
| 14 | PS Peptidespspeptides.com | Active | US-made; 99%+ purity stated; third-party HPLC/MS | Payment methods unconfirmed | 6.7† | |
| 14 | Sports Technology Labssportstechnologylabs.com | Active | HPLC/MS third-party tested; founded 2019 | Payment methods unconfirmed | 6.7† | |
| 14 | Biotech Peptidesbiotechpeptides.com | Active | US-stated; third-party testing per batch; custom synthesis | Payment methods unconfirmed | 6.7† | |
| 14 | Umbrella Labsumbrellalabs.is | Active — FDA warning letter2021-05-18 | Public product-category COAs; independent chemists stated, no commercial lab named | Credit/debit cards, Bitcoin, ACH, and Zelle | 6.7 | |
| 14 | Pura Peptidespurapeptides.com | Active | Third-party testing and COAs claimed; no public library or lab name confirmed | Visa, Mastercard, Discover, and bank transfer | 6.7 | |
| 19 | Core Peptidescorepeptidesresearch.com | Active | Batch documents on request; third-party reviews reported ~96% purity | Payment methods unconfirmed | 6.3† | |
| 19 | Limitless Lifelimitlessbiotech.com | Rebranding2026-07 | Testing documentation unconfirmed | Payment methods unconfirmed | 6.3† | |
| 19 | NeuroLabs Peptidesneurolabspeptides.com | Active | reported by PeptidePrices, unverified: public report library and Freedom Diagnostics record matching | reported by PeptidePrices, unverified: Visa, Mastercard, American Express, Discover, Apple Pay, and bank-transfer acceptance | 6.3† | |
| 19 | Ameano Peptidesameanopeptides.com | Active | reported by PeptideMind, Peptide Source Review, and Peptide Critic, unverified: per-batch COAs and Janoshik verification | reported by PeptideMind, unverified: card and PayPal acceptance and no cryptocurrency | 6.3† | |
| 19 | Alpha Omega Peptidesalphaomegapeptide.com | Active | Freedom Diagnostics stated; reports require a batch-specific accession number and are not linked from product pages | reported by Peptide Grades, unverified: Visa, Mastercard, American Express, Apple Pay, Venmo, Zelle, and cryptocurrency acceptance | 6.3† | |
| 24 | Amino Clubaminoclub.com | Active | 99%+ guarantee and batch COAs claimed | Payment methods unconfirmed | 5.0† | |
| 24 | Verified Peptidesverifiedpeptides.com | Active | 500+ published lab reports claimed; lab-verifiable | Card acceptance unconfirmed | 5.0† | |
| 26 | Swiss Chemsswisschems.is | Active — FDA warning letter2024-12-10 | Testing documentation unconfirmed | Payment methods unconfirmed | 4.6† | |
| 26 | Pure Rawzpurerawz.co | Active — FDA warning letter2025-09 | Testing documentation unconfirmed | Payment methods unconfirmed | 4.6† | |
| 26 | Prime Peptidesprimepeptides.co | Active — FDA warning letter2024-12-10 | reported by Finnrick and Peptide Examiner, unverified: Janoshik verification records and Freedom Diagnostics testing | Payment methods unconfirmed | 4.6† | |
| 26 | Paramount Peptidesparamountpeptides.com | Active — state board enforcement2026-08-29 | reported by Peptide Source Review, unverified: per-product COA pages and third-party testing | reported by Peptide Source Review, unverified: credit-card, cryptocurrency, and e-check acceptance | 4.6† | |
| 30 | Peptide Vault Labspeptidevaultlabs.com | Active | US-stated; public COA library claimed | Venmo and Zelle only; no card | 3.8† |