Science.bio Shut Down: What’s Confirmed and How to Vet a Replacement Source (2026)

Science.bio posted a permanent closure notice on January 27, 2026, telling customers it was “closing for regulatory compliance reasons” and “will not be returning,” with all outstanding orders to be fulfilled or fully refunded. That closure is confirmed. If you bought from Science.bio, the move that protects you now is not grabbing the cheapest lookalike source, it is vetting any replacement on lot-matched third-party COAs (HPLC purity plus mass-spec identity) you can verify before you pay a cent.

Published 2026 - For research use only (RUO). Nothing here is medical advice, a dosing protocol, or a human-use recommendation. Every compound referenced is a laboratory research chemical, not an approved drug, supplement, or treatment.

In a hurry? Jump to how Pepora scores on the checklist →

That opening paragraph is the whole page. Everything below is how to actually do it, because the reason so many displaced buyers get burned twice is that they swap one unverified vendor for another and never open the paperwork that would have told them the material was junk.

What’s actually confirmed about the Science.bio shutdown

This niche runs on rumor, so separate the confirmed from the repeated before you act on either.

Confirmed. On January 27, 2026, Science.bio announced a permanent closure through a customer email, a social post, and a notice on its own storefront. The stated reason was regulatory compliance, with the blunt line that the company “will not be returning.” The announcement said all outstanding orders would be either fulfilled or fully refunded, and support stayed reachable to handle open orders in the immediate wind-down. This is visible in real time across community threads (the rapamycin.news longevity forum captured the announcement text the day it went out) and multiple vendor-tracking write-ups.

Reported, not documented. The broader story of who Science.bio was. It is widely written that Science.bio grew out of the old IRC.bio (Innovative Research Compounds) SARMs operation, launched under the Science.bio name around April 2019, added research peptides to a mostly-SARMs catalog in late 2021, and ran a sister site for natural ingredients. These details come from review sites and community memory, not primary records, so treat the lineage as credible background rather than court-verified fact.

The honesty caveat that matters most. Science.bio has announced a closure before. Community members point out that it went dark around 2022 and later relaunched in 2023. So the 2026 “we will not be returning” line sits on top of a track record of returning once already. I am not predicting a comeback, the regulatory climate in 2026 is far harsher than 2022, but you should draw the practical conclusion: if a “Science.bio” storefront reappears asking for your card, assume it is a traffic-harvesting imposter riding a dead brand until it proves otherwise. Reused names after a shutdown are one of the most common re-scam vectors in this market.

Rumor only. Any specific claim that Science.bio was physically raided, “ignored warning letters,” or spiked particular products. None of that is on the public record for this specific vendor. Its own stated reason was compliance, full stop.

The honest version: the vendor is gone, it said so itself, it closed inside a wave of federal pressure, and it left with a cleaner exit statement (orders fulfilled or refunded) than several of its peers managed.

This was not a one-off

Science.bio vanished into a broader enforcement climate that any displaced buyer should understand before picking a “safe” replacement. In September 2025 the FDA issued more than 50 warning letters to companies compounding or manufacturing the branded metabolic-drug class, most dated to a single week [4]. A parallel effort targeted sellers using “research use only” labeling while their advertising signaled human use. Science.bio was one name in a run of closures across 2025 and 2026 that also swept up several long-tenured vendors. Brand size and years online protected none of them.

The practical takeaway is not “these compounds are banned tomorrow.” It is that the vendors who disappear overnight with your money are the ones running loose: human-use marketing, no real third-party lab paper, prescription-style products sold beside research chemicals. Your defense is the lab data you can read before you pay, and nothing else.

If you have a pending order or store credit

Science.bio said it would fulfill or refund outstanding orders. If yours falls through the cracks during the wind-down, here is the realistic recourse:

1. File a chargeback or dispute with your card issuer or bank, citing non-delivery of goods, as early as possible inside your dispute window. The sooner you file, the better the odds.
2. Screenshot everything you still have: order confirmation, payment record, the closure notice, any tracking.
3. Do not re-order from any “Science.bio” URL. A brand that closed and then reappears asking for a card is the classic imposter pattern, and Science.bio’s own relaunch history makes this brand an especially easy one to fake.
4. Don’t reuse the same card on an unvetted successor site. If a checkout feels off, rotate the card.

Why the cheapest replacement is the real risk

Science.bio’s flagship category was SARMs, and SARMs are exactly where the analytical evidence on mislabeling is most damning. Government-affiliated analysts bought 44 products marketed online as selective androgen receptor modulators and put them through the lab. Only 52% actually contained the SARM on the label. 39% contained a different unapproved drug instead. 9% contained no active compound at all. Only 41% had a labeled amount that matched what was in the bottle, meaning 59% showed a substantial discrepancy, and 25% contained a substance that was not disclosed on the label anywhere [1]. That is the actual base rate for “trust the label” in this corner of the market: roughly a coin flip on identity and worse on dose.

Peptides are no safer to buy blind. A peptide missing a single amino acid, or carrying a truncated or wrong-sequence impurity, can still read as high purity on a careless trace while being the wrong molecule entirely. That is why identity and purity have to be answered by two different instruments on your batch, not one. Pharmacopeial work on synthetic-peptide quality is explicit that establishing identity, purity, and strength takes a battery of methods, HPLC for content and impurities plus mass spectrometry for identity, not a single number on a marketing page [3].

So “just find another cheap vendor” is the trap. Cheap is usually cheap because nobody paid for third-party analysis, and the material is frequently not what the label says. The fix is boring and it works: run every candidate through a checklist and make it show you the paper. If you want the deeper version of the warning signs, our peptide vendor red flags rundown catalogs the patterns that precede exactly this kind of disappearance.

The COA vetting checklist

Run every replacement vendor through this. A vendor either passes each line or it does not. There is no “trust us.”

Vetting check	What a passing vendor shows	Common failure signal
Named, independent third-party lab	COA names an outside lab (e.g. Janoshik or Freedom Diagnostics)	“In-house tested,” or no lab named at all
Independently verifiable COA	Report confirmable at the lab (e.g. by accession number)	A screenshot or PDF that cannot be traced to the lab
HPLC purity + mass-spec identity	Both a purity chromatogram and an identity mass	A bare “99%+” claim, or purity with no identity check
Lot number on the vial, matched to the COA	Legible batch number that matches the report’s batch	No number, or a generic COA reused for every batch
Report visible before you pay	You can open the COA pre-purchase	“Email us for the COA” after checkout, or nothing
US shipping, honestly stated	“Ships from the US” (a checkable logistics fact)	“Made in USA” on overseas-synthesized material

Two of those lines carry most of the weight. A named third-party lab you can verify, and both instruments (HPLC and mass spec) run on the batch you are buying. Get those two right and you have defeated the majority of the failure modes the literature actually documents.

How to read the report itself

Two numbers, two instruments, two different questions:

• Mass spectrometry answers “is this the right molecule?” The measured mass should match the target’s expected molecular weight. This is the identity check counterfeiters most often fail, because substitution and truncation do not always show up on a purity trace [3].
• HPLC answers “how much of it is the intended compound?” It separates the sample and reports the main peak as a percentage. That percentage is the purity figure that belongs on the label.

If a vendor shows you one but not the other, you have half the picture. If you cannot verify the report at the lab that supposedly ran it, you have none of it. For a line-by-line walkthrough with annotated examples, see how to read a peptide COA.

A note on which labs the community actually trusts: names like Janoshik and Freedom Diagnostics come up repeatedly because their reports carry IDs you can check with the lab directly and they have no stake in the vendors they test. If you are cross-referencing what forums recommend, our best peptide sources on Reddit breakdown is blunt about how much of that chatter is verifiable versus vibes.

A reality check on the compounds themselves

Vetting the vendor is separate from the state of the science, and honesty about the science is part of the vetting. Science.bio’s most-requested peptides (GHK-Cu, BPC-157, TB-500 and their blends) sit on a large preclinical literature and a thin human one. GHK-Cu, for instance, has a deep mechanistic and cell-and-animal record going back to Loren Pickart’s original isolation work, and reviews describe a long history of use in skin and wound research, but that is preclinical and cosmetic-research context, not established human therapeutic outcomes [2]. Buy accordingly: these are reference materials for laboratory research, not products with proven human results. If your old vendor’s marketing told you otherwise, that marketing was one of the reasons it was on a regulator’s radar in the first place. The same logic applied to the Amino Asylum shutdown and the other closures in this cluster.

How Pepora scores

Full disclosure up front: this site is operated by and affiliated with Pepora, so read what follows as a worked example of the checklist, not an unbiased ranking. The point is that you can verify every claim below yourself, which is the entire discipline this page is trying to teach.

Pepora publishes third-party certificates of analysis from Freedom Diagnostics, an independent US lab, with both HPLC purity and mass-spec identity, and each result is verifiable by accession number at FreedomDiagnosticsTesting.com. As a concrete, checkable example: its GHK-Cu report (accession Pepo2603130126) shows 99.98% purity. You do not have to take that from me, you look the accession up at the lab’s own site.

Here is the honest limit, because a checklist with no caveats is just marketing: only about three to four SKUs carry Freedom Diagnostics COAs so far. The rest of the catalog is still working through independent third-party testing, and I am telling you that rather than letting you assume the whole shelf is covered. On the SKUs that are covered, Pepora passes every line of the table above (named independent lab, verifiable by accession, HPLC plus mass spec, report visible before purchase, ships from the US). On the ones that are not yet, apply the same checklist you would apply to anyone and ask for the batch-matched report before you buy. The checklist is the authority here, not any one brand, including this one.

FAQ

Is Science.bio really closed, or is it coming back? Science.bio posted a permanent closure notice on January 27, 2026, telling customers it was closing for regulatory compliance reasons and would not be returning. That closure is confirmed across the community and the site itself. One honest caveat: Science.bio also announced a closure back in 2022 and later relaunched, so its own history is why you should treat any future “Science.bio is back” storefront as an imposter until proven otherwise, not as the original team.

What happens to my pending Science.bio order or store credit? In its closure notice Science.bio said all outstanding orders would be fulfilled or fully refunded. If that does not happen for you, file a chargeback or dispute with your card issuer citing non-delivery, as early as you can inside the dispute window, and keep every order and payment screenshot.

Was the Science.bio shutdown an FDA raid? No public evidence says so. Science.bio’s own stated reason was “regulatory compliance.” It closed during a documented enforcement wave (50-plus FDA warning letters in September 2025 alone), but no indictment, seizure order, or DOJ press release naming Science.bio has surfaced publicly. Treat the compliance framing as the vendor’s own stated reason and the broader pressure as context, not as a confirmed raid.

What’s the single most important thing to check on a replacement vendor? That the batch number on the vial matches a named third-party lab COA you can see before you pay, and that the COA shows both HPLC purity and mass-spec identity. That one check defeats most of the failure modes the analytical literature has actually measured in this market.

Does “ships from the US” mean the compounds are made in the US? No. Almost all of this material is synthesized overseas regardless of where it ships from. “Ships from the US” is a checkable logistics claim; “Made in USA” on the same product is not, and it is a reason to distrust the vendor rather than trust it.

Are these compounds proven to work in humans? No. Science.bio’s biggest categories were SARMs, nootropics, and research peptides, and the literature on the popular ones is largely preclinical with limited human data. They are sold as laboratory research chemicals for research use only, not as approved drugs, supplements, or treatments.

References

1. Van Wagoner RM, Eichner A, Bhasin S, Deuster PA, Eichner D. Chemical Composition and Labeling of Substances Marketed as Selective Androgen Receptor Modulators and Sold via the Internet. JAMA. 2017;318(20):2004-2010. PMID 29183075. https://pubmed.ncbi.nlm.nih.gov/29183075/
2. Pickart L, Vasquez-Soltero JM, Margolina A. The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health. Oxidative Medicine and Cellular Longevity. 2012;2012:324832. PMID 22666519. https://pubmed.ncbi.nlm.nih.gov/22666519/
3. McCarthy D, Han Y, Carrick K, et al. Reference Standards to Support Quality of Synthetic Peptide Therapeutics. Pharmaceutical Research. 2023;40(6):1317-1328. PMID 36949371. https://pubmed.ncbi.nlm.nih.gov/36949371/
4. Wilson Sonsini Goodrich & Rosati. FDA Sends Warning Letters to More Than 50 GLP-1 Compounders and Manufacturers. 2025. https://www.wsgr.com/en/insights/fda-sends-warning-letters-to-more-than-50-glp-1-compounders-and-manufacturers.html
5. Rapamycin Longevity News community forum. Science.bio closes (announcement thread, January 27, 2026). https://www.rapamycin.news/t/science-bio-closes/23357

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Full disclosure: This page is published by a disclosed education and vendor-vetting hub operated by and affiliated with Pepora (peporalabs.com). We earn a commission on purchases made through our links and the coupon code above, including GONE15. Our recommendation of Pepora rests on publicly verifiable criteria (a named third-party lab, published HPLC and mass-spec results, and reports verifiable by accession number at Freedom Diagnostics) that you are encouraged to confirm independently before purchasing, and we state plainly that only a few SKUs carry those third-party COAs so far. All compounds referenced are sold for research use only and are not approved drugs, supplements, or treatments for humans or animals.