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Science.bio, one of the best-known online suppliers of SARMs, nootropics and research peptides, has permanently closed. As of January 27, 2026, its website shows a closure notice confirming that all sales of research products have stopped.
This page used to be our Science.bio review. We now keep it as a reference for researchers who used the platform: what the closure notice said, the likely reasons behind it, what the company was known for, what our own orders were like and how to judge a replacement supplier.
Key Takeaways
- Science.bio has permanently closed. As of January 27, 2026, it no longer sells any research products.
- Its closure notice said every outstanding order would be either fulfilled or fully refunded.
- The notice gave no specific reason, and we know of no public enforcement action tied to the closure. It came during a wider shakeout of research-compound vendors.
- Before closing, Science.bio was known for batch tracking and published third-party lab reports across a broad catalog of SARMs, nootropics and peptides.
- If you are choosing a new supplier, expect the same standard: batch-matched certificates of analysis from an independent lab you can verify.
Science.bio Has Permanently Closed
Science.bio announced its permanent closure, stating: “It is with a heavy heart that we announce Science.bio will be permanently closing. All outstanding orders will be either fulfilled or fully refunded.”
The company’s statement said that, after careful consideration, it had decided to close permanently and stop selling all research products, and it thanked customers for their support over the years.
This was not the first time Science.bio stopped trading, but it is the first closure the company has called permanent. It closed in late 2018 and relaunched in 2019, then shut down again in early 2022 and came back in 2023. Few vendors in the research-chemical space have had a more stop-start history.
Science.bio at a Glance
| Detail | Summary |
|---|---|
| Status | Permanently closed |
| Sales stopped | January 27, 2026 |
| Outstanding orders | Fulfilled or fully refunded, according to the closure notice |
| Earlier closures | Late 2018 (relaunched 2019) and early 2022 (relaunched 2023) |
| Known for | SARMs, nootropics and peptides with published third-party lab reports |
| Where to look now | Our SARM and peptide vendor guides (see below) |
Why Did Science.bio Close?
Science.bio’s notice did not give a specific reason, and we have not seen any public enforcement action against the company linked to the closure. It reads as a business decision.
That decision came while the whole research-compound market was under pressure, and the same pressures pushed other well-known vendors out around the same time:
- closer FDA scrutiny of SARMs and other unapproved compounds, including warning letters to sellers and federal raids on some competitors;
- criminal cases against some sellers of performance compounds;
- payment problems, as card processors treat research-compound sales as high-risk or refuse them outright; and
- lawsuits from the makers of GLP-1 drugs against sellers of unapproved copies.
Science.bio did not name any of these itself, so treat them as context rather than a confirmed explanation.
Science.bio in Context: A Market-Wide Shakeout
Science.bio’s closure was not an isolated event. Several of the best-known names in the research-compound market have disappeared in a short space of time, through raids, legal pressure and voluntary closures. We have covered the Peptide Sciences shutdown and the federal raid on Amino Asylum separately.
Product quality has been a long-running problem in this market too. A 2017 analysis published in JAMA tested 44 products sold online as SARMs and found that many did not contain what their labels claimed, and some contained other unapproved drugs. That is why published, batch-matched lab reports matter so much when you choose a supplier.
Science.bio’s Legacy
Despite the closure, Science.bio had a generally positive reputation in research communities for its core products. Nothing in its closure notice pointed to quality problems.
It was widely regarded as one of the more transparent research-chemical suppliers, known for its testing. Its handling of the closure was also better than most, because it committed to fulfilling every outstanding order or refunding it in full before shutting down.
Who Was Science.bio?
Science.bio was an online supplier of research compounds and became one of the most trusted names in the space. Its catalog covered SARMs, nootropics, peptides, metabolic compounds and longevity compounds.
The company was especially well known for:
Quality control: Batch and lot tracking, with third-party testing by HPLC, NMR spectroscopy, TLC, ICP-MS, GC-MS and other methods, and lab reports published for its products.
Product range: SARMs including Ostarine (MK-2866), Testolone (RAD-140), Ligandrol (LGD-4033), Andarine (S4) and YK-11, alongside a broad nootropic and peptide catalog.
Traceability: The company said its compounds were made in ISO-compliant facilities, and each product could be traced by lot number to its third-party certificate of analysis.
Our Past Experience With Science.bio
Our team at Muscle and Brawn previously ordered CoQ10 powder and Ostarine MK-2866 from Science.bio, and both products met our expectations. The ordering process was smooth, payment by credit card worked as described, and delivery arrived within the stated timeframe.
In our experience, Science.bio set a high standard for what a research-compound supplier should look like: rigorous, transparent and customer-focused.
What Are Alternatives to Science.bio Now?
With Science.bio gone and far fewer established vendors left, it pays to be selective. Our best SARM vendors and best peptide vendors guides list the suppliers we currently rate, with the certificate of analysis (COA) checks we use to vet them.
What to Look For in a Replacement Supplier
- Batch-matched COAs: the lot number on your product should match a lab report you can actually find.
- A named, independent lab: you should be able to check that the lab exists and, ideally, confirm the report with it.
- Identity as well as purity: HPLC shows purity, while mass spectrometry or NMR confirms the compound is what the label says.
- Clear policies and contact details: a real support channel and written shipping and reship terms.
- No health claims: a supplier that markets research compounds for human use, with dosing advice or promised results, is a red flag.
A COA only shows what was in the batch that was tested. It does not make a compound safe or approved for human use.
SwissChems and NextChems are two of the vendors we work with. Their brand pages have the details:
Pros
- Exceptional purity & testing (≥98%)
- Pharmaceutical-style packaging for stability
- Broad catalog across peptides & nootropics
- Strong reputation & consistency across years
Cons
- Some items frequently out of stock due to high demand
- Limited long-term data for some compounds
Pros
- Publishes analytical reports using methods including LC-MS/MS, HPLC-UV/MS, and GC-MS.
- Shipping coverage includes the US, Canada, Europe, South Asia, the Middle East, and other regions.
- Relatively competitive pricing.
Cons
- Customer-reported concerns regarding lost or delayed international shipments.
- Smaller research catalog than other brands on the market
The Bottom Line
Science.bio has permanently closed, so this page is now a record of the company rather than a buying guide.
- The closure notice said all outstanding orders would be fulfilled or fully refunded, and there is no sign of a relaunch.
- Science.bio was known for batch tracking and published third-party lab reports, and that is the standard to expect from any replacement.
- SARMs and other research compounds are not approved for human use, and a certificate of analysis does not make a product safe.
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