Where to Buy Peptides: Research Vendors Checked (2026)
Checked, not rated · Updated 3 October 2026
Research peptides such as BPC-157 and TB-500 are sold online by vendors that label them for laboratory research only; neither is an FDA-approved medicine (what that means legally). A vendor is checkable when it names the lab that tests its vials, publishes a certificate of analysis (COA) for each batch that the lab confirms, and has no FDA warning letter.
The table compares 3 vendors on those checks and on the price of one BPC-157 10 mg vial. Before buying from any vendor, including these, run my vendor checklist and check the batch COA with my guide to reading a peptide COA. Lab-tested peptides explains what "99% pure", "third-party tested" and "USA-made" prove on a vendor's page.
- vendors listed
- 3
- name their testing lab
- 3
- publish batch COAs
- 2
- vendor reviews
- 18
No regulator checks that a research vial matches its label. A certificate of analysis is only as good as the lab behind it.
Research peptide vendors compared
Each row gives the checklist results from my review of that vendor and its price for one BPC-157 10 mg vial. The order matches the cards below and is not a ranking.
| Vendor | FDA record | Names its lab | Batch COAs | Card payment | Price, BPC-157 10 mg vial | Checks verified |
|---|---|---|---|---|---|---|
| Next Level PharmMy review | No warning letter found | Yes | Yes | Yes | $48.99as of 3 October 2026 | 3 October 2026 |
| Spartan PeptidesMy review | No warning letter found | Yes | Not verified | Not verified | $199.00as of 3 October 2026 | 3 October 2026 |
| BioEdge Research LabsMy review | No warning letter found | Yes | Yes | Not verified | $49.00as of 3 October 2026 | 3 October 2026 |
Prices come from each vendor's own product page on the date shown, and they change often.
Vendors compared by compound
One buy page per compound, blend or medicine people search to buy: who sells it, from what price on what date, and its US legal status. Prescription medicines show the legal route first.
Research compounds
Sold only as research chemicals: the checked vendors that sell each one, their prices, and what its COA should show.
- Buy 5-Amino-1MQ
- Buy Adamax
- Buy AOD-9604
- Buy ARA-290
- Buy BPC-157
- Buy Cagrilintide
- Buy Cartalax
- Buy Cerebrolysin
- Buy CJC-1295
- Buy Dihexa
- Buy DSIP
- Buy Eloralintide
- Buy Epitalon
- Buy GHRP-2
- Buy Humanin
- Buy IGF-1 LR3
- Buy Ipamorelin
- Buy Kisspeptin
- Buy KPV
- Buy LL-37
- Buy Melanotan II
- Buy MOTS-c
- Buy PE-22-28
- Buy Pinealon
- Buy PNC-27
- Buy Retatrutide
- Buy Selank
- Buy Semax
- Buy SLU-PP-332
- Buy TB-500
- Buy Thymosin alpha-1
- Buy VIP
Blends and stacks
Pre-mixed vials and two-vial stacks: who sells each, the split on the label and the price.
Prescription medicines
The prescription route and dated prices first, then research-labelled vials, which are not the approved medicine.
Consumer products and research vials
Sold legally as cosmetics, supplements or clinic treatments, and separately as research vials.
Each vendor, checked
1.Next Level Pharm
Names an independent testing lab and publishes a batch-specific certificate verifiable on the tester's own portal.
- No FDA warning letter found
- Names its testing lab
- Batch COAs published
- Takes card payment
Stocks 49 compounds I cover: 5-Amino-1MQ, Adamax, Adipotide, AICAR, AOD-9604, ARA-290 (Cibinetide), BPC-157, Cagrilintide, Cardiogen, Cartalax, Cerebrolysin, CJC-1295, Cortagen, Crystagen, DSIP, Eloralintide, Epitalon, GHK-Cu, GHRP-2, Glutathione, Hexarelin, HGH Fragment 176-191, Human Chorionic Gonadotropin, Humanin, IGF-1 LR3, Ipamorelin, Kisspeptin, KPV, Liraglutide, LL-37, Melanotan II, MGF, MOTS-c, NAD+ (injection), Oxytocin, PE-22-28, PEG-MGF, PNC-27, PT-141, Retatrutide, Selank, Semaglutide, Semax, Sermorelin, SNAP-8, SS-31, TB-500, Tesamorelin, Tirzepatide
Checked 3 October 2026
2.Spartan Peptides
Publishes signed MZ Biolabs HPLC and mass-spec reports for 6 compounds; all six carry the same lot code.
- No FDA warning letter found
- Names its testing lab
- Batch COAs not verified
- Card payment not verified
Stocks 16 compounds I cover: AOD-9604, BPC-157, Epitalon, GHK-Cu, Kisspeptin, MOTS-c, NAD+ (injection), Pinealon, PT-141, Retatrutide, Semaglutide, Semax, TB-500, Tesamorelin, Thymosin alpha-1, Tirzepatide
Checked 3 October 2026
3.BioEdge Research Labs
Publishes lot-specific batch certificates from named third-party labs (MDx BioAnalytical Laboratory and Kovera Labs); one matched on the lab's own site.
- No FDA warning letter found
- Names its testing lab
- Batch COAs published
- Card payment not verified
Stocks 51 compounds I cover: 5-Amino-1MQ, Adamax, AOD-9604, ARA-290 (Cibinetide), BPC-157, Bronchogen, Cagrilintide, Cardiogen, Cartalax, Cerebrolysin, Chonluten, CJC-1295, Cortagen, Crystagen, Dihexa, DSIP, Epitalon, FOXO4-DRI, GHK-Cu, Glutathione, Humanin, IGF-1 LR3, Ipamorelin, Kisspeptin, KPV, Livagen, LL-37, Melanotan II, MOTS-c, NAD+ (injection), Ovagen, Oxytocin, Pancragen, PE-22-28, PEG-MGF, Pinealon, PNC-27, Prostamax, PT-141, Selank, Semax, Sermorelin, SLU-PP-332, SNAP-8, TB-500, Tesamorelin, Testagen, Thymosin alpha-1, Vesugen, Vilon, VIP
Checked 3 October 2026
Which peptide companies have shut down?
Four vendors I have looked at closed or changed hands. A site using an old vendor's name is not necessarily the same business.
Paradigm Peptides
Its owner, Matthew Kawa, was sentenced on 30 July 2026 to 70 months in federal prison for selling unapproved drugs. Prosecutors say the business falsely claimed FDA registration and US manufacturing and testing. In fact it imported its products untested from Asia, including China and India. It kept selling after FDA warned it in 2020 and 2022.
Source: US Attorney, Northern District of Indiana, 30 July 2026; FDA warning letter, 7 December 2020 · my review
Peptide Sciences
Its own homepage says it has voluntarily shut down and stopped selling its research products. It adds that any site claiming to be its successor, or to sell its products, is unauthorized. Two BBB complaints filed in June and July 2026 describe orders taken under its name after the closure, paid by Apple Cash and never delivered.
Source: peptidesciences.com homepage; Internet Archive copy, 8 March 2026; Internet Archive copy, 8 September 2026; BBB complaints, checked 3 October 2026 · my review
PureRawz
Its site, purerawz.co, now says it does not sell, stock or ship products and calls itself an informational and affiliate website (terms updated 12 August 2026). Its product pages send buyers to other sellers through referral links. FDA sent PureRawz a warning letter on 8 September 2025 over tianeptine sold as a research chemical.
Source: purerawz.co Terms and Conditions, checked 3 October 2026; FDA warning letter, 8 September 2025 · my review
Amino Asylum
aminoasylumofficial.com, one of several sites now using the name, says the original business went offline after a June 2025 enforcement action. It says an investment group then bought the brand. On 3 October 2026 I could not confirm that enforcement action on fda.gov or justice.gov.
Source: aminoasylumofficial.com About page, checked 3 October 2026 · my review
Other vendors I have reviewed
I reviewed these against the same checklist but do not list them for buying. Each review says what I found.
- Amino Asylum Review
Is Amino Asylum legit? Five live sites use the name. The "official" one names no owners or lab and showed no COAs on pages I opened. FDA and DOJ records checked.
- Amino Club Review
Is Amino Club legit? A New Jersey LLC with batch COAs and no FDA warning letter I could find, but its site names no lab and the BBB rates it F.
- Ascension Peptides Review
Is Ascension Peptides legit? No FDA warning letter, and its COAs name two labs. But its address is a UPS Store mailbox, it names no owner and all sales are final.
- Biotech Peptides Review
Is Biotech Peptides legit? No FDA warning letter, and most COAs name a lab, MZ Biolabs. But its address is a virtual-office centre and it names no owner.
- Core Peptides Review
Is Core Peptides legit? No FDA warning letter, and its COAs name Vanguard Laboratory. But identity is checked by HPLC only, and its address is a virtual office.
- Ion Peptide Review
Is Ion Peptide legit? No FDA warning letter and batch COAs its lab confirms, but its addresses are a mailbox and a registered agent, and no owner is named.
- Limitless Life Nootropics Review
Is Limitless Life Nootropics, now Limitless Biotech, legit? No FDA warning letter, named labs and a Florida LLC, but Finnrick passed 7 of 22 samples.
- Loti Labs Review
Is Loti Labs legit? No FDA warning letter, and its COAs now name their labs. But its address is a UPS Store mailbox and Finnrick passed 15 of 32 samples.
- Modern Aminos Review
Is Modern Aminos legit? No FDA warning letter and 359 lab-hosted batch COAs, but a virtual-office address, no named owner and no returns on peptides.
- Paradigm Peptides Review
Is Paradigm Peptides legit? No. It shut down in 2024, its owner got 70 months in prison for selling unapproved drugs, and its domain no longer sells peptides.
- Peptide Partners Review
Is Peptide Partners legit? FDA sent it a warning letter in August 2026. It posts 397 lab records, and Finnrick passed 74 of 102 samples. Address and refunds checked.
- Peptide Sciences Review
Is Peptide Sciences legit? It shut down in 2026. Its COAs named no outside lab, Finnrick passed 79 of 132 samples, and sites using its name are not affiliated.
- Peptide Warehouse Review
Is Peptide Warehouse legit? No FDA warning letter found and it takes cards, but 49 of its 53 COAs name no lab and it lists no owner or address. Lookalikes compared.
- PureRawz Review
Is PureRawz legit? It no longer sells: purerawz.co is now an affiliate site. It had a 2025 FDA warning letter, an F from BBB and mixed Finnrick tests.
- SwissChems Review
Is SwissChems legit? It has a December 2024 FDA warning letter and now names its testing labs. Address, owner, Finnrick tests, payments and returns checked.
Common questions
How to legally buy peptides?
It depends on the type. Approved peptide medicines, such as semaglutide and tirzepatide, need a prescription and come from a licensed pharmacy, in person or through telehealth. Collagen supplements and peptide skin creams are sold freely as supplements and cosmetics. Research peptides such as BPC-157 are sold online labelled for laboratory research only. That label does not make them approved for human use, and FDA judges a product by how it is marketed and meant to be used. This is general information, not legal advice.
Do I need a prescription for peptides?
For approved peptide medicines, yes. Semaglutide, tirzepatide, tesamorelin and bremelanotide (PT-141) are prescription-only in the US. Collagen peptides and cosmetic peptides need no prescription. Research peptides are not approved medicines, and vendors sell them without a prescription, labelled for laboratory use only. Some clinics prescribe compounded peptides, but FDA limits which substances pharmacies may compound.
What is the most reputable peptide company?
I don't rank vendors, so I don't name one. Judge a vendor by what it lets you check: a named testing lab, a certificate of analysis for each batch that the lab confirms, no FDA warning letter, a real address and an owner you can identify. The table on this page shows the first three checks for each vendor I list. A vendor that passes every check can still ship a bad batch.
Where can I buy BPC-157?
Research-chemical vendors sell it online, labelled for laboratory research only; it is not an FDA-approved medicine. 3 vendors on this page sell a 10 mg vial, and the table gives the price with the date I checked it. Before you buy, confirm the batch certificate of analysis on the testing lab's own site.
How to find a legit peptide supplier?
Check before you pay. Ask for the certificate of analysis for the batch you will receive, and confirm it on the testing lab's own site. The COA should show purity by HPLC and identity by mass spectrometry. Search fda.gov for warning letters naming the company. Be wary of sellers that give human dosing instructions or make treatment claims, and pay with a method that offers buyer protection. My vendor checklist has all 14 checks.
What stores can I buy peptides at?
Pharmacies, supermarkets and online retailers sell collagen peptide supplements and peptide skin care, which need no prescription. Prescription peptide medicines come from a licensed pharmacy once a prescriber has written the prescription. Research peptides such as BPC-157 and TB-500 are sold online by research-chemical vendors, like the ones on this page, labelled for laboratory use.
How vendors are checked and listed
Each vendor gets the same walk-through, written up in its review. I search FDA warning letters and import alerts. I check whether it names the lab that tests its products and publishes batch certificates of analysis I can verify. I also note how it takes payment, how it handles returns and any public independent testing data.
Checklist results come from those reviews and carry the date they were checked. Prices carry the date I saw them.
I give no scores or stars. The order vendors appear in is mine, and a listing is not an endorsement of any product.
Run the checklist yourself on any vendor, including these.