A reliable replacement source
Peptide Sciences Alternative — Research Peptides Sourced Direct From A Swiss Pharmaceutical-Grade Manufacturer
Peptide Sciences ceased operations in March 2026, leaving many laboratories asking the same question: where to buy research peptides from a supplier with verifiable provenance. Dr Jays Peptides sources 100% of its research compounds directly from Swiss Pharmaceutical-Grade Manufacturer, the Swiss pharmaceutical-grade peptide manufacturer, and fulfills domestically from Jacksonville, Florida.
- 100% Swiss-Sourced
- Veteran-Owned
- Domestic Fulfillment
- 20% Profits To Animal Charities
Why researchers are switching
Why researchers are choosing Dr Jays Peptides
With Peptide Sciences no longer operating, laboratories need a supplier whose chain of custody is documented end-to-end — not an anonymous powder from a broker or marketplace. Here is what sets Dr Jays Peptides apart.
100% Sourced Direct From A Swiss Pharmaceutical-Grade Manufacturer
Every batch traces back to the Swiss pharmaceutical-grade manufacturer — not anonymous powder.
Veteran-Owned
Run with the same discipline our team brought to military service.
20% Of Profits Donated
A fixed share of monthly profits goes to animal welfare organizations.
Domestic Fulfillment & Batch Records
Prepared and shipped from Jacksonville, Florida with batch traceability.
A neutral criteria framework
What to look for in a Peptide Sciences alternative
Whether you continue with us or evaluate other suppliers, these are the criteria that matter most when sourcing research peptides.
Sourcing & Provenance
Can the supplier name the manufacturer of the raw peptide material? Dr Jays Peptides sources 100% direct from our Swiss pharmaceutical-grade manufacturer.
Transparency
Is the supply chain documented or implied? We publish where our material comes from and keep batch records on file.
Domestic Fulfillment
Domestic shipping reduces customs friction and shortens transit. Our orders ship from Jacksonville, Florida.
Catalog Breadth
From metabolic and growth-hormone research compounds to cosmetic, anti-aging, and neurotropic peptides — covered under one catalog.
Responsive Support
A reachable team that answers research questions. Monday–Friday, 08:00–16:00 ET.
Compliance Framing
A supplier that consistently frames products as research use only — not as therapeutics or supplements.
Pick up where you left off
Find the research compounds you were sourcing
Browse the most-requested research peptides below, or jump straight into the metabolic research category for receptor-agonist research compounds. All listings are framed for laboratory and research use only.
Metabolic & GLP-1 research compounds
Recovery, cosmetic & hero research compounds
For laboratory and research use only
All products sold by Dr Jays Peptides are supplied strictly for in vitro laboratory and research purposes. They are not medicines, dietary supplements, cosmetics, or products for human or veterinary consumption, diagnosis, or treatment. Researchers are responsible for ensuring lawful use within their jurisdiction.
FAQ
Peptide Sciences alternative — questions, answered
Is Peptide Sciences still in business?
No. Peptide Sciences ceased operations in March 2026. Researchers who previously sourced from them are now looking for a reliable replacement supplier of research peptides.
What is a good Peptide Sciences alternative?
A good alternative is a supplier with verifiable provenance — meaning the raw peptide material can be traced back to a known, regulated manufacturer rather than an anonymous powder. Dr Jays Peptides sources 100% of its research compounds directly from a Switzerland-based pharmaceutical peptide manufacturer, and fulfills domestically with batch records on file.
Where can I buy research peptides now?
Dr Jays Peptides supplies research peptides for laboratory and research use only. The catalog includes metabolic, growth-hormone, anti-aging, cosmetic, and neurotropic research compounds, all sourced direct from our Swiss pharmaceutical-grade manufacturer and shipped domestically from Jacksonville, Florida.
Where does Dr Jays Peptides source its peptides?
100% of our research compounds are sourced directly from a Switzerland-based pharmaceutical peptide manufacturer that supplies the global pharmaceutical and research industry. Every batch is then prepared and fulfilled domestically through Florida Compounding Company in Jacksonville, Florida.
Are these products for human use?
No. All products sold by Dr Jays Peptides are supplied strictly for laboratory and research use only. They are not medicines, dietary supplements, cosmetics, or products for human or veterinary consumption, diagnosis, or treatment.
Pick up your research where you left off
Swiss-sourced research peptides, fulfilled domestically. Research use only.