IDUN Peptides Review: 72 of 73 COAs Confirmed at the Lab, for Business Buyers Only

Last verified October 31, 2026. Updated the same day after we verified IDUN’s request-only certificates; the grade rose from 8 to 9 (A). Amino Review does not run lab tests. Every finding below is labeled by its source, as described in How We Evaluate Vendors.

The short verdict

Evidence label: Laboratory-confirmed document. Grade: A (9/10). We confirmed 72 of IDUN Peptides’ 73 certificates on the testing labs’ own systems: all 46 it posts in full, plus 26 of the 27 it sends only on request. All of them show purity above 99%, none is under the labeled amount, and every lot number is unique to its product. Most recent lots also carry endotoxin, sterility-screen and heavy-metals results. It offers a 30-day refund on sealed items and names two registered companies.

The request-only certificates, which cover every GLP-class product, were the open question in our first review. The emailed links turned out to work, and the reports behind them check out at the labs, which is what lifted the grade. What keeps it from a perfect score is that IDUN calls vendor-paid testing “independently verified”. Before buying, also note that IDUN sells only to approved businesses, not to individual consumers (see Business and policies). See our vendor comparison for how the grade is calculated.

What the COAs actually show

Where the reports come from

The COA library is public, with no login. On October 31 it listed 73 certificates for 24 products from two labs: Kovera Labs (51) and Freedom Diagnostics (22). Each entry gives the batch, lab, test date and purity. 46 entries let you download the report and open the lab’s own record. The other 27, for IDN-RT, IDN-TZ, IDN-Tesa, IDN-CAG and IDN-31, show only a “Request COA” button, which emails you a lab link.

We checked all 46 public reports at the labs. All 16 Freedom Diagnostics PDFs are byte-for-byte identical to the copies on Freedom’s own server. All 30 Kovera reports exist on Kovera’s verification portal under the same report number, lot and product, with the client named as IDUN Peptides. 28 of the 30 match the lab’s current record value for value. For the 27 request-only reports, we obtained the verification links IDUN emails out and checked each one at the lab. All 6 Freedom reports are byte-for-byte identical to the lab’s copies, and 20 of the 21 Kovera reports are on Kovera’s portal with the same lot, product and purity as IDUN’s library, each with LC-MS identity, endotoxin, sterility-screen and heavy-metals results. Only one SS-31 report (batch SS10-260706) remains unchecked. In total, 72 of 73 certificates (98.6%) are confirmed at the lab, up from 51 (70%) in our first pass. That confirms the reports are real. It does not make them independent: IDUN chose and sent the samples.

Two Kovera copies that differ from the lab

IDUN publishes each Kovera lot as a four-page bundle that it says was taken from its Kovera account on October 14. Kovera re-issued all of IDUN’s reports on October 16–17. For two lots, the vendor’s copy and the lab’s current record give different amounts for three of the four vials:

• BPC-157/TB-500 20 mg (batch BB20-260706): 21.40 mg average on IDUN’s copy, 21.33 mg at the lab.
• Klow 80 mg (batch KW80-260722): 85.84 mg average on IDUN’s copy, 88.62 mg at the lab.

Purity and the first vial are identical in both lots, both versions are above the label, and on Klow the vendor’s copy shows the lower amount. That looks more like a lab correction made after IDUN’s snapshot than an edit. We have not penalised it, but it is unresolved. Three older reports also show a certification date two to three weeks later than the lab’s analysis date.

What is tested, and what is not

• Purity and amount: HPLC purity and the measured amount in two vials (Freedom) or four vials (Kovera) on every public report.
• Identity: LC-MS identity confirmation on all 46 public reports and on all 26 request-only reports we confirmed.
• Endotoxin: a USP <85> LAL test on every Kovera lot, all below 0.08 EU/mL.
• Sterility screen: a 14-day culture screen with no growth on every Kovera lot. This is not the compendial USP <71> sterility test, and the lab says it does not certify the whole batch.
• Heavy metals: ICP-MS lead, arsenic, cadmium and mercury on every Kovera lot, all below the lab’s limits, plus a fentanyl screen.

The older Freedom reports (February to May 2026) carry purity, amount and identity only. The library’s newest result is dated October 10, 2026. Every one of the 24 products has at least one certificate confirmed at the lab.

Accreditation

Neither lab holds ISO/IEC 17025 accreditation. Freedom Diagnostics describes itself as “compliant with ISO 9001 / GLP principles”, and Kovera is not listed by the main US accreditation bodies. That is normal for peptide testing, and IDUN does not claim otherwise. We disclose it here but do not score it.

Results worth reading closely

• Purity is between 99.10% and 99.93% on every report we opened. The lowest is TB-500 (batch TB10-260331), and the library lists 99.1% or higher for all 73 entries.
• No underfill: nothing measured below 90% of the label, including the request-only GLP-class reports (lowest: one retatrutide 30 mg lot at 29.87 mg, about 100%). The lowest are thymosin beta-4 at 9.38 of 10 mg (94%) in a March Klow blend, and single NAD+ 1000 mg and glutathione 1500 mg vials at about 96%.
• Overfills: several 10 mg products routinely measure 10–30% over the label. Examples are BPC-157 at 13.01 mg (130%), KPV at 12.90 mg (129%), Semax at 12.76 mg (128%), and ARA-290 16 mg at 20.19 mg (126%). Several request-only GLP-class lots run 115–127% over label. You get more than the label, but dosing by label is less precise.

Lot numbers

Every one of the 73 certificates carries its own lot code built from the product, size and date (for example IP10-261007). No lot appears on two products, and every lot we checked matches the lab’s record. Match the lot on your vial to the certificate before relying on it.

Independent testing (Finnrick)

Finnrick, a testing site that accepts samples mailed in by the public, lists IDUN Peptides with no tests as of October 31, 2026. We found no other blind-bought test results. Every report discussed here was ordered by the vendor.

Business and policies

• Business buyers only: IDUN’s Terms say “only an approved Business Customer may purchase products.” You must register, represent a business, and be approved before ordering. Its refund and warranty terms are written for that business customer. If you are an individual, you are not an eligible buyer under IDUN’s own terms, and protections written for consumers may not apply in the same way. Entering the site also means agreeing to binding individual arbitration and a class-action waiver, with a 30-day opt-out.
• Identity: the Terms name IDUN Solutions LLC as the seller and IDUN Peptides LLC as the supplier and fulfiller. Florida records list IDUN PEPTIDES LLC as active (document L26000043925, formed January 16, 2026, Orlando). Wyoming records list IDUN Solutions LLC as active (2026-002107304), formed October 15, 2026, just two weeks before this review. This is a young business that restructured recently.
• Returns (vendor statement): “Request authorization within 30 calendar days after delivery. Eligible products must be unopened, unused, unaltered, in original packaging, and have every tamper-evident seal intact.” “Refunds normally return through the original payment rail.” There is no restocking fee. The buyer pays return shipping, and original shipping is not refunded. A payment-provider fee can be kept only if it was disclosed before purchase.
• Problems with an order: report damage, shortages or wrong items within five business days, with photos. For a dispute about a product’s identity or COA, IDUN may require a documented chain of custody and testing by a qualified independent lab, with costs approved in advance.
• Shipping and payment: ships only within the United States, with free shipping. Cards are accepted “when card processing is available”, as is Bitcoin, which cannot be reversed.
• Claims to read carefully: the COA library calls itself a “third-party verified archive” and an “independently verified peptide archive”, and promises “Every batch. Every test. Full transparency.” The labs are third parties, but IDUN commissions the tests, and 27 certificates are not shown publicly, although the emailed links we obtained led to genuine lab records. The “≥99% purity” claim holds on every report we could check.

Reputation

We loaded IDUN’s Trustpilot profile ourselves on October 31, 2026. It showed 4.9 stars from 217 reviews and no one-star reviews: 206 five-star, 8 four-star, 2 three-star and 1 two-star. The profile was claimed in May 2026, is on a paid Trustpilot plan, and invites customers to review, so every review is less than a year old. Reviewers praise fast shipping, packaging and lab-linked COAs. The few low ratings complain about steep price increases in October 2026 (around $100 more per order) and slow shipping on early orders. Reviews say nothing about what is in a vial.

Red flags at a glance

• 27 of 73 certificates, covering every GLP-class product, are available only by email request. The links work, and 26 checked out at the labs; one remains unchecked.
• It sells to approved businesses only, with arbitration and a class-action waiver. That is a poor fit for individual buyers.
• “Independently verified” is used for vendor-commissioned testing.
• Two Kovera copies differ from the lab’s current record on vial amounts, probably a lab correction but not yet explained.
• A very young business: the supplier was formed in January 2026, the selling company in October 2026, and the terms were rewritten in late October. No independent testing is on record.

What it does well

• 72 of 73 certificates confirmed at the issuing labs, including all 46 public reports and 26 of the 27 sent on request. Every Freedom copy is byte-for-byte identical to the lab’s.
• Purity above 99% on every report, no underfilled result, and a unique lot code on every certificate.
• A current library (newest October 10, 2026) with four-vial assays, LC-MS identity, endotoxin, a 14-day sterility screen and heavy metals on recent lots.
• A 30-day refund on sealed items to the original payment method, with no restocking fee.
• Two registered, active companies named in its terms, and no accreditation over-claims.

Who it is for

IDUN suits approved business and lab buyers who want documentation they can check: most reports open on the lab’s own site in a minute, and recent lots carry a fuller safety panel than most vendors publish. It is not set up for individual consumers, who are not eligible buyers under its terms. If you buy a GLP-class product, request that lot’s certificate and verify it with the lab before you rely on it. Check the lot on your vial against the report, and use the 30-day sealed-return window if something does not match.

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Is IDUN Peptides legit?

On the evidence we could check, IDUN Peptides’ paperwork is genuine. We confirmed 72 of its 73 certificates on the issuing labs’ own systems (Kovera Labs and Freedom Diagnostics), including 26 of the 27 it sends only on request, and every lot code is unique to its product. Its terms name two registered, active companies, IDUN Solutions LLC and IDUN Peptides LLC, and it offers a 30-day refund on sealed items. The main concerns: it sells only to approved business customers, it calls vendor-paid testing “independently verified”, two Kovera copies differ from the lab’s current record on vial amounts, and both companies are less than a year old. No independent testing is on record. Grade: A (9/10). Products are sold for research use only.

Are IDUN Peptides’ COAs real?

Yes, for 72 of 73. All 22 Freedom Diagnostics reports, public and request-only, are byte-for-byte identical to the lab’s copies, and 50 of the 51 Kovera reports are on Kovera’s portal under IDUN’s name. One SS-31 report remains unchecked. Real is not the same as independent: IDUN chose and sent the samples.

Vendors: dispute a finding

If you represent IDUN Peptides and think a finding here is wrong, email vendors@aminoreview.com with the report or lot number and your evidence. We recheck it with the issuing lab within 7 days. Any grade change is noted on this page with the date.

Research use only: products discussed here are sold by third-party vendors, labeled for research use only, and are not approved drugs. This review assesses public documentation; it is not medical, legal, or purchasing advice. See our full disclaimer. Corrections are welcome at contact@aminoreview.com.