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Loti Labs Review: Is It Legit? COAs, Lab Tests, Address, FDA Record

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.

Sebastian Hunter, Founder and EditorWritten bySebastian Hunter, Founder and EditorI'm a 42-year-old senior advisor and distance runner who came to peptides as a sceptic. I'm not a doctor: I read the research, run my own experiment and keep honest notes. Read full bio

The short version

Loti Labs has no FDA warning letter on record, and its COA page now shows certificates that name the labs that ran them. I matched one of those certificates on the lab's own website. Against that, its listed address is a mailbox at a UPS Store and it names no owner. The independent tester Finnrick passed 15 of 32 samples it tested in 2025. I checked its site, the labs, FDA's records and Finnrick on 3 October 2026. This is a fact check, not a rating.

  • No FDA warning letter naming Loti Labs appears in FDA's warning-letter index as of 3 October 2026.
  • Its COA page shows certificates from two named labs, Bioviridian and SR Bio Labs. One Bioviridian certificate matched the record on the lab's own site.
  • Finnrick passed 15 of 32 Loti Labs samples tested in 2025, a 59% rating that ranks it 406th of 457 vendors.
  • The address it lists is a mailbox at a UPS Store in Brooksville, Florida, and no owner is named anywhere on the site.
  • Unused, unopened product can be refunded within 30 days of purchase. Nothing is re-shipped once tracking shows delivery.

Loti Labs has no FDA warning letter on record and now publishes certificates that name the labs that ran them. I matched one, a BPC-157 certificate, on the lab’s own website. Against that, the address it lists is a UPS Store mailbox and it names no owner. The independent tester Finnrick passed 15 of the 32 samples it tested in 2025.

I ran my peptide vendor checklist against Loti Labs on 3 October 2026, using the company’s own pages, the labs’ websites, Finnrick’s results and FDA’s warning-letter index. There is no star rating or score.

Loti Labs scorecard

Checklist itemWhat I foundSource
FDA recordNo warning letter naming Loti Labs in FDA’s indexFDA index
Batch COAsYes. Certificates carry lot numbers, such as LL-BPC-626Peptide COA page
Testing lab namedYes, on the certificates: Bioviridian and SR Bio Labs. The site’s own text names neitherBioviridian certificate
Certificate confirmed by the labYes for the one I tried: Bioviridian COA 5346Bioviridian record
Identity test (mass spec)Yes: MALDI-MS (Bioviridian) and LC-MS (SR Bio Labs)SR Bio Labs certificate
Endotoxin testReported on the Bioviridian BPC-157 certificateBioviridian record
Independent testingFinnrick: 15 of 32 passed, 59% rating, 406th of 457 vendors. Tested March to May 2025Finnrick
Street addressA mailbox at a UPS Store in Brooksville, FloridaUPS Store page
Named ownerNoneFAQ
Card paymentsNo page lists payment methods. The shipping page describes same-day ACH bank paymentShipping and returns
ReturnsUnused, unopened product within 30 days. No re-ship once tracking shows deliveryShipping and returns
Dosing or disease claimsNone foundHomepage

What Loti Labs is

Loti Labs sells research peptides, “research liquids” and capsules online. Its FAQ says the company “was founded in 2019” and calls itself “a small team”. Its About page claims “14+ years of proven expertise”. It also says Loti Labs is “a founding member of the American Peptide Association”, an industry trade group rather than a regulator or accreditation body. Its terms say: “Loti Labs is a chemical supplier. Loti Labs is not a compounding pharmacy or chemical compounding facility as defined under 503A of the Federal Food, Drug, and Cosmetic Act.”

FDA record

I searched FDA’s warning-letter index, which can be filtered by company name, on 3 October 2026. No warning letter naming Loti Labs appears there. The same search also returns nothing for a company FDA has never examined, so an empty result is not a certificate of legality or safety. Research peptides and US law explains what a “research use only” label does and doesn’t mean.

Certificates of analysis

Loti Labs’ COA hub links separate peptide, liquid and capsule COA pages. The peptide page says the company will “publish Certificate of Analysis (COA) reports for each batch we produce”, and shows each certificate as an image.

The certificates now name their labs. Two I opened:

  • BPC-157 5 mg, lot LL-BPC-626: a Bioviridian Inc. certificate issued 17 June 2026. It reports 99.9% purity by HPLC, identity confirmed by MALDI-MS, endotoxin below 0.05 EU/mL, and 6.82 mg of peptide in a vial labelled 5 mg.
  • AOD-9604 5 mg, lot LOT-AOD-00001: an SR Bio Labs certificate analysed on 6 February 2026, reporting 99.48% purity by HPLC and identity by LC-MS.

The Bioviridian certificate gives a web verification code, COA 5346. Bioviridian’s own COA search returned the same certificate for that code. A named lab confirming the record on its own site is the strongest check a buyer can make.

The site’s own text still names no lab. Its FAQ says Loti Labs has spent “the last several years building relationships with top-tier manufacturers and independent testing labs”. It also says “Every batch is third-party tested before it ships”. It names no lab. How to read a peptide COA covers what to match on a certificate.

Finnrick’s independent tests

Finnrick sources vendors’ products, sends them to third-party labs and publishes the results. Its Loti Labs page reports 32 samples across 6 peptides, tested between March and May 2025. Fifteen passed its standard (purity of 99.5% or more, dose within 35%) and 17 failed. That gives a 59% rating, 406th of 457 vendors. Retatrutide scored best (81%); failures cluster in CJC-1295 (23%) and semaglutide (58%). Finnrick adds that “missing batch IDs plus dispersed purity/fill results limit lot-level confidence despite a sizeable, recent panel.”

Its tirzepatide page reports 10 samples, 6 passing, and a 73% rating “pulled down by repeated purity misses, including 96.809%, 97.184%, and a later 99.042% result”. These are Finnrick’s methods and numbers. They predate the certificates above by about a year.

Where is Loti Labs located?

The contact page lists 1204 S Broad St #336, Brooksville, FL 34601. That is The UPS Store’s Brooksville location, whose page offers “mailbox services” and explains opening a private mailbox there. The “#336” is a mailbox number. Many small online sellers use one, so it proves nothing by itself. It also can’t confirm a business premises.

No owner, officer or responsible person is named anywhere on the site.

Payments, shipping and returns

I found no page listing accepted payment methods. The shipping page describes a “Link Money Same Day ACH” bank payment option. It says orders over $500 paid that way wait 2 business days for funds to clear. ACH payments don’t carry card chargeback rights.

Orders placed before 1 PM Eastern on a weekday ship the same day, and delivery in the continental US usually takes 3 to 5 business days. Loti Labs does not ship internationally.

Unused, unopened product can be refunded within 30 days of purchase. Once USPS or UPS tracking shows delivery, the company says it is “unable to re-ship orders”. A shipped order can’t be cancelled, and a returned one is refunded minus any shipping paid.

Dosing and disease claims

The site uses research-only wording throughout: “All products on this site are for research and development use only. Products are not for human consumption of any kind.” Its sign-up form asks buyers to agree the products are “intended solely for in-vitro research and experimentation by professionals”. I found no dosing instructions, injection schedules or disease claims on the pages I checked.

Common questions

Is Loti Labs legit?

Loti Labs has no FDA warning letter on record as of 3 October 2026. Its COA page shows certificates from named labs, and I matched one on the lab's own website. Against that, its address is a UPS Store mailbox and it names no owner. Finnrick passed only 15 of the 32 samples it tested in 2025. The scorecard on this page sources each point.

Does Loti Labs test its products?

Its COA page shows lot-numbered certificates from two named labs, Bioviridian and SR Bio Labs, with HPLC purity and mass-spectrometry identity results. A Bioviridian certificate for BPC-157 (COA 5346) matched the record on Bioviridian's own COA search. Finnrick's separate tests, from March to May 2025, passed 15 of 32 samples.

What is the Loti Labs return policy?

According to the Loti Labs shipping and returns page, unused and unopened product can be refunded within 30 days of purchase. The company says it cannot re-ship an order once carrier tracking shows delivery, and it cannot cancel an order that has already shipped.

Which peptide company has shut down?

Peptide Sciences says on its own homepage that it has voluntarily shut down and stopped selling its research products. Paradigm Peptides' owner, Matthew Kawa, was sentenced on 30 July 2026 to 5 years and 10 months in federal prison, according to the Justice Department. The site now using the Amino Asylum name says the original business went offline after a June 2025 FDA raid. I could not confirm that in FDA or Justice Department records. The vendors page on this site keeps the full list of sellers that closed or changed hands.

What is the most trusted peptide company?

Peptide Decode does not rank vendors, because no regulator checks what research peptide sellers ship. To judge one yourself, look for batch COAs from a named lab you can verify on the lab's own site, and independent test results. Also look for a real address, a named owner, card payments, no dosing or disease claims and no FDA warning letter. The vendor checklist on this site walks through each step.

Does Peptide Decode recommend Loti Labs?

No. This page does not rate, rank or recommend Loti Labs or any other vendor. It reports sourced facts against a published checklist so you can judge the company yourself.

References (17 sources)

Bibliographic detail is fetched from PubMed, not written by me - so a citation here cannot drift from the paper it names. Study design comes from PubMed's own tags rather than my judgement.

  1. 1.FDA warning-letter index, searched 3 October 2026 for "Loti Labs" and "lotilabs": no matching letter.- US Food and Drug Administrationregulatory
  2. 2.Bioviridian certificate of analysis, BPC-157 5 mg for Loti Labs, lot LL-BPC-626, issued 17 June 2026, as shown on the Loti Labs COA page.- Loti Labsother
  3. 3.Bioviridian COA search record COA5346: the same BPC-157 certificate, served from the lab's own website (retrieved 3 October 2026).- Bioviridian Inc.database
  4. 4.SR Bio Labs certificate of analysis, AOD-9604 5 mg for Loti Labs, lot LOT-AOD-00001, analysed 6 February 2026, as shown on the Loti Labs COA page.- Loti Labsother
  5. 5.US Attorney's Office, Northern District of Indiana: United States v. Matthew Kawa, the Paradigm Peptides case, with the 10 December 2025 guilty pleas and the 30 July 2026 sentences.- US Department of Justice, US Attorney's Office, Northern District of Indianaregulatory
  6. 6.Peptide Sciences homepage: statement that the company has voluntarily shut down operations and discontinued the sale of its research products (checked 3 October 2026).- Peptide Sciencesother
  7. 7.Loti Labs homepage: "Independent third-party testing — every batch, every time" claim, "Third-Party COA Tested" badge, and research-use-only disclaimers.- Loti Labsother
  8. 8.Loti Labs "Who Are You" FAQ page: company founded 2019, self-described as "a small team," and statement that it is not a 503A compounding pharmacy.- Loti Labsother
  9. 9.Loti Labs About page: "founding member of the American Peptide Association" and "14+ years of proven expertise" claims.- Loti Labsother
  10. 10.Loti Labs Certificates of Analysis hub page: "Access verified Certificates of Analysis for each category of our research products below," organized by peptides, liquids and capsules.- Loti Labsother
  11. 11.Loti Labs Peptides Certificates of Analysis page: page description states the company will "publish Certificate of Analysis (COA) reports for each batch we produce."- Loti Labsother
  12. 12.Loti Labs Contact page: physical address, phone number and support hours as published by the company.- Loti Labsother
  13. 13.Loti Labs Terms and Conditions: self-classification as "a chemical supplier," not a 503A compounding pharmacy or facility.- Loti Labsother
  14. 14.Loti Labs Shipping and Returns policy: 30-day refund window for unused, unopened product, no re-ship once carrier tracking shows delivery, and same-day ACH payment terms.- Loti Labsother
  15. 15.Finnrick vendor page for Loti Labs: 32 independent tests across 6 peptides, 15 passing, 59% rating, ranked 406th of 457 vendors (checked 3 October 2026).- Finnrickother
  16. 16.Finnrick product page for Loti Labs Tirzepatide: 10 samples tested, purity results including three results below Finnrick's 99.5% pass threshold.- Finnrickother
  17. 17.The UPS Store, Brooksville FL location page for 1204 S Broad St - confirms the address is a UPS Store offering private mailbox rental, not a standalone business address.- The UPS Storeother

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