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The Peptide Vendor Shutdowns of 2025 to 2026: Who Closed and Where to Go Now

Between mid-2025 and mid-2026, several major grey-market peptide vendors closed, some voluntarily, one after a Department of Justice guilty plea. If a source you relied on went dark, here is what changed and the prescribed, pharmacy-grade path that does not vanish.

By the pru team  ·  Updated July 9, 2026  ·  9-minute read
An adult sitting at a kitchen table in morning light, closing a laptop and looking calmly out the window after deciding to move onto a safer path when the supplier they used disappeared
Image: pru

If a peptide vendor you used stopped shipping or disappeared, you are not looking at an isolated event. Between mid-2025 and mid-2026, several major grey-market peptide vendors closed: Peptide Sciences (voluntary, March 2026), Science.bio (voluntary, January 2026), Strate Labs (closing July 1, 2026 per its own site notice), Paradigm Peptides (whose owner pleaded guilty to federal drug charges in December 2025), Amino Asylum (went offline in 2025), and Royal Research and Unchained Compounds (reportedly went offline in 2025).

The drivers, on the record, were tightening FDA enforcement against research-chemical sellers, Department of Justice cases reaching the sector, payment-processing restrictions, and a proposed federal law aimed at the model.

This guide lays out who closed and the verified facts of how, why a grey-market vendor with no prescriber and no licensed pharmacy is fragile by design, and the safe way forward: a prescribed, pharmacy-grade path where a licensed physician prescribes, an FDA-registered 503A pharmacy compounds, a Certificate of Analysis verifies each batch, and pru prices the peptide at cost. pru is built only for that path and it does not vanish.

Several grey-market peptide vendors closed, and here is the safe alternative

The grey-market peptide industry contracted sharply between mid-2025 and mid-2026. Several major vendors closed in that window, by voluntary shutdown and, in one documented case, after a Department of Justice guilty plea, driven by tightening FDA enforcement against research-chemical sellers, Department of Justice cases reaching the sector, payment-processing restrictions, and a proposed federal law. The safe alternative is not another grey-market site selling vials labeled for research use only, because those are the sites that keep closing.

It is a prescribed, pharmacy-grade path: the same kinds of peptides, ordered through a licensed telehealth provider where a physician confirms the peptide is appropriate for you and an FDA-registered 503A pharmacy fills it with a Certificate of Analysis. That is the difference between a research chemical that can disappear and a medicine you can stand behind.

THE ONE LINE THAT MATTERSThis was not one bad vendor. A whole tier of sellers with no prescriber, no licensed pharmacy, and no accountability closed inside a single year. A prescribed, pharmacy-grade path is built to stay. pru only does that path.

Dec 2025
the month the owner of Paradigm Peptides pleaded guilty to federal drug charges, per the U.S. Department of Justice
Jan 2026
Science.bio posted a permanent closure on its own site, citing regulatory-compliance reasons
~$60/mo
pru's compounded semaglutide, your price per month when you start on a 3-month plan; the medication is priced at cost, membership separate
Sources: U.S. Department of Justice records; vendor closure notices and reporting; pru pricing pages, 2026.
An adult sitting at a kitchen table in morning light, closing a laptop and looking calmly out the window after deciding to move onto a safer path when the supplier they used disappeared
Image: pru

Who closed, and how

The verified facts are narrow, and they are enough. Several major grey-market peptide vendors closed between mid-2025 and mid-2026. The cause of each closure is attributed to the public record where one exists, and left unstated where it does not.

  • Peptide Sciences closed voluntarily in March 2026, posting a brief notice and discontinuing all of its research products with no advance warning and no official reason. See the Peptide Sciences alternative.
  • Science.bio closed voluntarily in January 2026, posting a permanent closure on its own site and citing regulatory-compliance reasons. See the Science.bio alternative.
  • Strate Labs is closing on July 1, 2026, per its own site closure notice, and was a named respondent in Eli Lilly's 2024 ITC complaint over tirzepatide, where it was found in default in May 2024 and ordered to cease and desist.
  • Paradigm Peptides remains tied to a Department of Justice case: its owner pleaded guilty to federal drug charges in December 2025 (U.S. Department of Justice, Northern District of Indiana), in a matter involving products sold as SARMs that contained testosterone and unapproved new drugs. See the Paradigm Peptides alternative.
  • Amino Asylum went offline in 2025. See the Amino Asylum alternative.
  • Royal Research reportedly went offline in 2025, per community trackers, with no notice or stated reason.
  • Unchained Compounds reportedly went offline in 2025, per community trackers, with no notice or stated reason.

WHAT IS ON THE RECORDVoluntary closures (Peptide Sciences and Science.bio, with Strate Labs closing July 1, 2026 per its own notice) and one Department of Justice guilty plea (by the owner of Paradigm Peptides) are attributed to the public record, as is Strate Labs being a named respondent in Eli Lilly's 2024 ITC tirzepatide complaint. Amino Asylum went offline in 2025. Royal Research and Unchained Compounds are community-reported 2025 closures with no accusation attached.

The customer impact is the part that matters most if you are reading this. When a grey-market vendor goes dark, buyers are left with no fulfilled orders, no refunds, and no source overnight. There is no prescriber to call, no licensed pharmacy on the hook, and no accountable party to make anyone whole.

Why the grey-market model is fragile

A wave of closures like this is not a run of bad luck. It is the built-in risk of the grey-market model meeting a year of pressure. A research-chemical vendor sells vials labeled for laboratory research only, which is how it stays outside the rules that apply to anything meant to go into a person. That same structure is what lets it vanish, and it is what enforcement targets. Four drivers, on the record, tightened at once.

  • Tightening FDA enforcement. FDA enforcement against research-chemical sellers stepped up across 2025, adding pressure on vendors selling vials labeled for research use only.
  • Department of Justice cases. Criminal cases reached the sector, including the December 2025 guilty plea by the owner of Paradigm Peptides.
  • Payment-processing restrictions. Processors pulled back from research-chemical sellers, cutting off the ability to take payment.
  • The proposed SAFE Drugs Act. Federal legislation aimed at selling research chemicals identical to approved drugs added regulatory pressure on the whole model.

Underneath those drivers sits the structural gap that makes the model fragile in the first place. When there is no prescriber, no licensed pharmacy, and no regulated party standing behind the product, there is also no one obligated to keep serving you, refund you, or answer for what was in the vial.

  • No prescriber. No licensed clinician reviewed your history or is responsible for your care, so no one is obligated to keep it going.
  • No licensed pharmacy. No 503A or 503B facility, no pharmacist oversight, and no dispensing record tied to you.
  • No accountability for the product. A seller-attested Certificate of Analysis is only as durable as the seller.
  • No recourse when it ends. No refunds, no transferable prescription, and no regulated party to make you whole. When the site goes dark, your money and your supply go with it.

THE LESSONThe peptides may be real, but the vendor is fragile by design. A grey-market seller with no prescriber, no licensed pharmacy, and no accountability can disappear overnight, taking your money and your supply with it, and across 2025 to 2026 several of them did.

The durable, accountable, legal, verified alternative keeps the peptides but replaces the fragile part. For more on the two tiers, see pharmacy-grade vs grey-market peptides and research-grade vs pharmacy-grade peptides.

The safe pharmacy-grade alternative

The safe alternative is pharmacy-grade. A licensed physician prescribes, an FDA-registered 503A pharmacy compounds the peptide for you as an individual, a Certificate of Analysis verifies each batch, and, with pru, the peptide is priced at cost. Every part that a grey-market vendor skips is added back, and every part that lets a grey-market vendor vanish is replaced with an accountable, regulated one. Here is the contrast, line by line.

What mattersA grey-market vendorpru (pharmacy-grade)
Can it disappear overnight?Yes; several vendors with no prescriber or licensed pharmacy closed between mid-2025 and mid-2026No; pru is an accountable, LegitScript-certified telehealth and pharmacy path
PrescriberNone; no clinician at any stepLicensed U.S. physician confirms the peptide is appropriate for you, or advises against it
Who fills itResearch-chemical supplier; no pharmacy in the chainFDA-registered 503A compounding pharmacy
TestingSeller-attested at best, and only as durable as the sellerA Certificate of Analysis verifies every batch
If something goes wrongNo refunds, no recourse, no accountable partyA licensed provider and pharmacy stand behind every fill
PricingPer-vial retail, paid up front, with no guarantee of fulfillmentPeptides at cost, itemized, plus a separate $50/mo membership (billed annually)
For pru, the price figure is the compounded semaglutide medication priced at cost, your price per month when you start on a 3-month plan; pru's $50 a month membership (billed annually, unlimited at-cost access) is separate. A grey-market vendor sells a research chemical, not a prescription, paid up front with no guarantee of fulfillment.

The trade is clear. A grey-market vendor gives you a vial and a disclaimer, and it can be gone tomorrow, as several of them proved. pru gives you a prescriber, a licensed pharmacy, a batch-verified fill, and at-cost pricing you can read line by line, from a provider that stays accountable. When you start on a 3-month plan, pru's compounded semaglutide comes to about $60 a month and tirzepatide to about $93 a month, because the medication is priced at cost with no markup.

Membership is separate: $50 a month billed annually for unlimited at-cost access, so the savings compound with every vial and you can stack more than one peptide without a markup on any of them. To vet any provider yourself, see how to verify a peptide source and where to buy peptides safely online.

How pru works, at cost

pru is a LegitScript-certified DTC membership telehealth platform built only for compounded peptides. pru's content guides you to the peptide that fits your goal and you choose it, a licensed physician confirms it is appropriate for you (or advises against it) and sets the dose, an FDA-registered 503A pharmacy compounds and fills it with a Certificate of Analysis, and the peptide is priced at cost, itemized, with no markup on the medicine.

When you start on a 3-month plan, your price for compounded semaglutide comes to about $60 a month (about $93 a month for tirzepatide), the lowest, because the medication is at cost.

Membership is separate: $50 a month billed annually for unlimited access to the platform and clinician messaging, so the savings compound with every vial and you can stack more than one peptide without a markup on any of them. pru offers compounded peptides, including semaglutide, tirzepatide, NAD+, glutathione, sermorelin, GHK-Cu cream, PT-141 nasal spray, and oxytocin, as injection, nasal spray, or GHK-Cu cream. pru does not sell research-grade material, SARMs, testosterone, or hCG.

Browse everything available now in the full catalog, or see the at-cost pricing. If you were buying for weight care, the weight loss & metabolism category has the GLP-1 options; for NAD+ and longevity, see cellular health.

Losing a supplier in a wave of shutdowns is a hard way to learn the lesson, but it is the moment to be proactive about your health and move onto a prescribed, tested path that stays accountable to you. If you want to start, see how to start peptide therapy. Take the next step whenever you are ready.

WHERE PRU SITSpru works only in the prescribed, pharmacy-grade tier: individualized, 503A-compounded peptides documented with a Certificate of Analysis. Pharmacy-grade means a physician prescribed it and a licensed pharmacy made it. It does not mean FDA-approved.

Common questions

What happened to peptide vendors in 2025 and 2026?
Between mid-2025 and mid-2026 several major grey-market peptide vendors closed: Peptide Sciences (voluntary, March 2026), Science.bio (voluntary, January 2026), Strate Labs (closing July 1, 2026 per its own notice), Paradigm Peptides (whose owner pleaded guilty to federal drug charges in December 2025), Amino Asylum (went offline in 2025), and Royal Research and Unchained Compounds (community-reported 2025 closures). On the record, the drivers were tightening FDA enforcement against research-chemical sellers, Department of Justice cases reaching the sector (the documented one being the guilty plea by the owner of Paradigm Peptides), payment-processing restrictions, and the proposed SAFE Drugs Act. A closure mechanism is stated only where the public record supports it; otherwise the reported fact is that the vendor went offline in this window.
What is the best peptide vendor alternative now?
The safe alternative is a pharmacy-grade path rather than another grey-market vendor, because the grey-market vendors are the ones that keep closing. That means a licensed physician prescribes, an FDA-registered 503A pharmacy compounds, and a Certificate of Analysis verifies each batch. pru is built only for that path and prices the peptide at cost, so compounded semaglutide is about $60 a month when you start on a 3-month plan (about $93 for tirzepatide), with a separate $50 a month membership billed annually for unlimited at-cost access. Unlike a grey-market seller, an accountable, licensed provider cannot vanish with your money and your supply.
Which peptide vendors have shut down?
Several major grey-market peptide vendors closed between mid-2025 and mid-2026: Peptide Sciences, Science.bio, Strate Labs, Paradigm Peptides, Amino Asylum, Royal Research, and Unchained Compounds. Peptide Sciences and Science.bio closed voluntarily, Amino Asylum went offline in 2025, and Paradigm Peptides is tied to a Department of Justice case in which its owner pleaded guilty to federal drug charges in December 2025. Strate Labs is closing on July 1, 2026 per its own site notice and was a named respondent in Eli Lilly's 2024 ITC tirzepatide complaint, found in default in May 2024 and ordered to cease and desist. Royal Research and Unchained Compounds are community-reported 2025 closures.
Why did so many peptide vendors close at once?
Four pressures tightened on the grey-market model at the same time, on the record: tightening FDA enforcement against research-chemical sellers, Department of Justice cases reaching the sector, payment-processing restrictions that cut off the ability to take payment, and the proposed SAFE Drugs Act. Underneath those drivers is the structural gap that makes the model fragile: a research-chemical vendor with no prescriber, no licensed pharmacy, and no accountable party has nothing obligating it to keep serving you when the pressure hits.
Is it safe to switch to a compounded peptide instead?
A compounded peptide is prescribed by a licensed physician and prepared by a 503A pharmacy for you as an individual, with a Certificate of Analysis verifying the batch. That adds back the prescriber, the licensed pharmacy, the testing, and the dosing support that a research-use-only vial leaves out. Compounded medicines are legitimate and overseen, though they are not FDA-approved as finished products. That is very different from an unregulated research vial with no prescription or pharmacy behind it. See are compounded peptides safe for more.
How much does the pru alternative cost?
pru prices the medication at cost, so compounded semaglutide is about $60 a month, your price per month when you start on a 3-month plan (about $93 for tirzepatide), the lowest because it is the medicine at cost. Membership is separate: $50 a month billed annually for unlimited at-cost access to the platform and clinician messaging. Because the medicine is at cost and access is unlimited, the savings compound with every vial and you can stack more than one peptide without a markup on any of them.
How does pru keep peptides affordable?
pru runs on an at-cost model. You pay one flat membership, and the medication is passed through at the pharmacy's price with no member markup. Because pru never marks the medication up, we have every reason to push its price down, not up. As pru grows and orders more, we negotiate lower pricing with our partner pharmacies, and those savings go straight to you. Healthcare pricing is usually hidden and inflated; pru is built to sit on your side of it: transparent, at cost, and fighting to make peptides more affordable as we scale.
Do the savings add up if I take more than one peptide?
Yes, and this is where pru's at-cost pricing saves you the most. Because pru never marks the medication up, every vial is priced at cost, so each peptide you add avoids the markup a typical provider builds in. If a physician has you on more than one peptide, or on a stack, that saving repeats on every vial, all under one flat $50 membership instead of a marked-up price on each. The more your protocol includes, the more the difference adds up, which makes doing it the right way a financially responsible choice, not an expensive one.
Sources & further reading
  1. Vendor closure notices and reporting on grey-market peptide vendors that closed between mid-2025 and mid-2026: Peptide Sciences (voluntary, March 2026), Science.bio (voluntary, January 2026, citing regulatory-compliance reasons), Strate Labs (own-site closure notice, closing July 1, 2026), Amino Asylum (went offline in 2025), Royal Research (community-reported 2025 closure), and Unchained Compounds (community-reported 2025 closure). Accessed July 2026.
  2. U.S. International Trade Commission, Certain Tirzepatide and Products Containing Same (Eli Lilly and Company complaint, 2024): Strate Labs named as a respondent, found in default in May 2024 and subject to a cease-and-desist order. usitc.gov. Accessed July 2026.
  3. U.S. Food and Drug Administration enforcement activity against research-chemical sellers in the grey-market peptide sector tightened across 2025. fda.gov. Accessed July 2026.
  4. U.S. Department of Justice, Northern District of Indiana: the owner of Paradigm Peptides (Matthew Kawa) pleaded guilty to federal drug charges in December 2025, in a matter involving products sold as SARMs that contained testosterone and unapproved new drugs. justice.gov. Accessed July 2026.
  5. Reporting on payment-processing restrictions on research-chemical sellers and the proposed SAFE Drugs Act (would bar selling research chemicals identical to FDA-approved drugs without a New Drug Application). Accessed July 2026.
  6. U.S. Food and Drug Administration. Human Drug Compounding and Compounding and the FDA: Questions and Answers (503A; compounded drugs are not FDA-approved). fda.gov. Accessed July 2026.
  7. pru catalog, category, and pricing pages. joinpru.com. Accessed July 2026.
  8. Compounded peptide pricing (internal pru research): pru compounded semaglutide medication approx. $60/mo and tirzepatide approx. $93/mo on a 3-month starter plan, priced at cost, with a separate $50/mo membership (billed annually, unlimited at-cost access). Accessed July 2026.
  9. LegitScript. Healthcare Merchant Certification. legitscript.com. Accessed July 2026.

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