Yes, Peptide Sciences has stopped selling peptides and closed down its operations in March 2026. The sudden closure of Peptide Sciences has left many loyal Peptide Sciences customers in a confusing state, unable to choose their next peptide supplier.
For years, Peptide Sciences was a well-known source for research peptides like BPC-157, TB-500, CJC-1295, Ipamorelin, and Semaglutide. Because of its reputation, many researchers depended on the company for consistent supply.
To understand where customers are going next, I reviewed discussions across multiple platforms, including Twitter (X), Reddit, Skool, Quora, Substack, and TikTok. Many users are actively sharing recommendations and experiences about new peptide suppliers.
I have made a list of the Top 3 peptide suppliers that are gaining attention after the shutdown of Peptide Sciences. At the top of the list of the best Peptide Sciences alternatives is Orion Peptides, due to its COA, purity, and affordable prices.
Top Peptide Sciences Alternatives in 2026
Among the suppliers being discussed, one name frequently mentioned at the top is Orion Peptides.
Researchers often highlight Orion Peptides because of its certificate of analysis (COA), product purity, and competitive pricing. As the peptide market adjusts after the shutdown of Peptide Sciences, many customers appear to be exploring Orion Peptides as a new source.
Why Orion Peptides is gaining attention
1. Third-party COA testing
One of the top reasons is their COA testing Certificate. All of their listed products include certificates of analysis. This helps researchers verify peptide purity.
2. Affordable pricing
Compared to several competitors, Orion Peptides offers peptides at relatively competitive prices.
3. Growing reputation
Online discussions across forums and social platforms show increasing interest in the company.
4. Availability of popular peptides
Researchers can often find commonly used compounds such as:
- BPC-157
- TB-500
- CJC-1295
- Ipamorelin
- Semaglutide
- Tesamorelin
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Other Peptide Suppliers Researchers Are Exploring
While Orion Peptides is frequently mentioned, there are also a few other companies that researchers are considering.
1. Swiss Chems
Swiss Chems offers a wide range of research compounds and peptides and has been known in the research chemical community for several years.
2. Umbrella Labs
Umbrella Labs provides research chemicals and peptides, and is another supplier some customers are exploring after the Peptide Sciences closure.
3. Peptide Pros
Peptide Pros sells research peptides commonly used in laboratory research and has been mentioned in discussions about alternatives.
Reasons Peptide Sciences Stopped Selling Peptides
Although the company did not publish a detailed explanation, several factors may have contributed to the shutdown.
1. Increased regulatory pressure
The peptide research industry has been under increasing scrutiny from regulators, especially in the United States. Companies selling research peptides have faced stricter enforcement and legal challenges.
2. Growing attention on GLP-1 compounds
Peptides such as semaglutide have become extremely popular, which has drawn additional attention from regulators and pharmaceutical companies.
3. Payment processing challenges
Many peptide vendors face difficulties with payment processors and banking services, which can make operating an online peptide business difficult.
4. Industry consolidation
Over the past few years, several peptide vendors have disappeared from the market due to regulatory and financial pressures.
Final Thoughts
So, did Peptide Sciences stop selling peptides?
Yes. The company closed its operations in March 2026, leaving many researchers looking for new suppliers.
While the shutdown created uncertainty, new suppliers are quickly filling the gap. Among them, Orion Peptides is gaining significant attention as a possible alternative because of its COA documentation, competitive pricing, and growing reputation in the research community.
If you decide to try Orion Peptides, remember you can save 10% using coupon code SHELBY10.
