Peptide Sciences closed March 6 — no codes work anymore. Here's where to get real discounts from vendors still shipping.
Key Takeaways
Every Peptide Sciences coupon code is dead. The site shut down March 6, 2026 — no codes work, no orders ship
Sites still publishing PS coupon codes are outdated or misleading — don't waste your time
Two vendors offer real discounts right now: EZ Peptides (10% off) and Ascension Peptides (50% off)
Prices are actually lower than what Peptide Sciences charged on most compounds
If you're searching for a Peptide Sciences coupon code, here's the short answer: they don't exist anymore.
Peptide Sciences shut down on March 6, 2026. The website is offline, no orders are being processed, and every coupon code — whether it's "PS10" or any other code you've seen — is permanently invalid.
Dozens of websites still rank for "Peptide Sciences coupon code" with pages listing codes that haven't worked since March. Some were created specifically to redirect you to their own affiliate vendors. This page exists to save you the runaround and point you to discounts that actually work.
Two vendors offer verified discounts on the same peptides Peptide Sciences sold:
EZ Peptides — 10% Off Everything
Code: | Catalog: 25+ peptides | COA: Yes, full catalog
EZ Peptides is the top-ranked Peptide Sciences alternative with the broadest verified catalog. Base prices already come in below what Peptide Sciences charged — the 10% discount makes it even more competitive.
Ascension's 50% discount makes them the lowest-cost option for most compounds. Independent COA testing and a solid catalog covering the most popular peptides.
