PeptidProfi Review
German-language research peptide shop operated by PeptidProfi sp. z o.o. (Szczecin, Poland), shipping to Germany, the EU and Switzerland. Publishes full Janoshik Analytical reports with batch numbers for 14 of its 21 peptides; the company and the shop are only a few months old.
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PeptidProfi sells its products exclusively for scientific research and development; any other use is prohibited. The authoritative product information and permitted use are those published by PeptidProfi in its own shop, not on this page.
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The Verdict on PeptidProfi
PeptidProfi does the documentation part better than most new shops: every published Janoshik report shows client, manufacturer and a batch number that also appears on the product page, so a result can be matched to the vial sold. The weak points are age and consistency. The company was entered in the Polish register on 26 August 2026, there is no independent review history yet, and measured content ranges from 20% below label (tesamorelin) to 17% above (KPV). A third of the catalog carries only an unpublished manufacturer analysis. Treat it as a promising but unproven vendor.
How PeptidProfi Scores
Each criterion is scored independently out of 10. The star rating is the weighted average of these scores divided by two: lab transparency 30%, COA quality 20%, independent reputation 20%, shipping, catalog and value 10% each. Lab transparency is weighted most heavily, because a purity figure from an unnamed laboratory cannot be independently corroborated.
What We Found
Strengths
- Batch-specific, uncropped reports. All 14 Janoshik reports carry a batch number that matches the batch shown in the shop (for example BPC-157 10 mg, batch PP-BPC-2601: 10.98 mg at 98.018%, task #216720; GHK-Cu 50 mg, batch PP-GHK-2601: 50.46 mg at 99.552%, #216719). Several longer-established vendors in this directory publish reports with a blank batch field.
- Retatrutide confirmed by blind GLP-1 screen. Janoshik ran its blind semaglutide, tirzepatide and retatrutide panel on batch PP-RETA-2601 and found retatrutide: 11.16 mg at 99.304% on a 10 mg vial (#216718, 7 August 2026). The product is sold under its real name, not a code.
- Unfavourable results stay online. The reports showing underfilled vials (tesamorelin, SS-31, melanotan I) are published next to the good ones rather than withheld.
- Legal entity confirmed. PeptidProfi sp. z o.o., Al. Wyzwolenia 70 lok. B109, 71-506 Szczecin, KRS 0001262775, NIP 8513356226, checked in the Polish National Court Register and the EU VIES VAT database on 27 October 2026. The imprint matches both.
- Verification keys check out. Our editor opened the Janoshik verification links from the vendor page in a regular browser on 27 October 2026; the spot-checked reports matched the published images.
- Ships within the EU with tracking; in Germany via DHL or Deutsche Post (Packstation possible), typically 1 to 2 days after a 1 to 3 working-day dispatch. Card, Apple Pay, Google Pay, Klarna (via Stripe) and bank transfer.
Weaknesses & caveats
- Very young company and shop. The company was entered in the Polish register on 26 August 2026 with the minimum share capital of PLN 5,000; the domain went live in July 2026. The first Janoshik tests were ordered on 31 July 2026, before registration (see the vendor’s explanation under unverified claims).
- Wide spread in measured content. Tesamorelin 10 mg: 8.02 mg at 97.804% (#243701, tested twice); SS-31 10 mg: 8.62 mg (#230637); melanotan I 10 mg: 9.27 mg (#230638). At the other end KPV 10 mg measured 11.68 mg (#230635) and selank 10 mg 11.46 mg (#243700). Purity is consistently high, fill weight is not.
- A third of the catalog has no published third-party report. 7 of 21 peptides carry the label “Laborgeprüft” based only on an internal manufacturer analysis that buyers cannot see. The wording is easy to read as an independent test. The vendor says these 7 are pre-order items for now and that Janoshik testing is planned for all of them.
- No independent reputation yet, and shop reviews are incentivised. The “4.9 of 5 from 137 verified reviews” shown in the shop is self-hosted, and the shop states that every review is rewarded with a thank-you voucher (regardless of content). We found no independently moderated review profile with a track record.
- Manufacturer not named. The reports list peptidprofi.de as manufacturer. The vendor treats its synthesis partner as commercially sensitive and offered to name it to us privately, but not publicly, so buyers cannot check the source.
- Mixed signals on research-use positioning. The shop sells insulin syringes and alcohol swabs next to a “not for human use” notice, and its affiliate programme recruits TikTok creators with a lifetime customer attribution and monthly store-credit tiers.
Lab Testing & COA Transparency
The single most useful question about any peptide vendor: can the purity claim be checked by someone other than the vendor?
| Testing lab publicly named | Yes — Janoshik Analytical (reports commissioned by the vendor) |
|---|---|
| COA practice | A lab-analyses page lists every product with its batch number (format PP-XXX-2601). For 14 of 21 peptides it shows a full, uncropped Janoshik Analytical report: task number, client (PeptidProfi), manufacturer (peptidprofi.de), batch, order and analysis dates, measured mg, purity and a verification key, plus a direct link to the Janoshik verification page. We read all 14 reports (tasks #216718 to #243701, analysed 7 August to 21 October 2026). The other 7 products (5-Amino-1MQ, cagrilintide, DSIP, epithalon, kisspeptin-10, PT-141, thymosin alpha-1) are labelled “Laborgeprüft” on the strength of a manufacturer analysis the vendor keeps internal and does not publish. One sample per batch, all ordered by the vendor itself. |
| Shipping | Ships from within the EU (Poland or Germany depending on stock, per the vendor) to Germany, all EU states and Switzerland, tracked. Germany 5.99 EUR (free from 89 EUR), EU 14.99 EUR (free from 200 EUR), Switzerland 29.99 EUR plus import charges paid by the recipient. Dispatch 1 to 3 working days after payment. |
| Payment | Bank transfer (prepayment), Visa, Mastercard, Apple Pay, Google Pay and Klarna via Stripe. |
Third-Party Reputation
Scores recorded on independent review platforms at the date shown. Where platforms disagree sharply, that disagreement is itself the finding.
Claims We Could Not Verify
PeptidProfi makes the following claims about itself. We found no independent corroboration for them. That does not make them false, but they rest on the vendor's word alone.
- Batch-specific manufacturer analyses for the 7 products without a published report. Stated by the vendor; not shown to buyers or to us.
- Warehouse location. The shop page only says it ships from the EU; in writing (27 October 2026) the vendor states that orders leave from Poland or Germany depending on stock.
- Pre-registration testing. The vendor states (27 October 2026) that the July and August 2026 Janoshik tests were ordered privately by the founders during the company’s formation, for the future business, and that no other shop or business was involved.
- Pre-order status and planned testing. The vendor states that the 7 products without a published report are not yet regular stock items and will be tested at Janoshik around regular availability, and that the next tesamorelin and SS-31 batches will be retested and published. No date given.
- Third-party review history. Trustpilot blocked our automated check on 27 October 2026; we will re-check manually at the next review.
- BiohackTested earns a commission on orders placed through our link or with the code BIOHACKTESTED (confirmed in writing by the vendor on 27 October 2026; code tested in the shop checkout the same day). The commission does not affect the scores on this page.
PeptidProfi FAQ
QIs PeptidProfi legit?
PeptidProfi does the documentation part better than most new shops: every published Janoshik report shows client, manufacturer and a batch number that also appears on the product page, so a result can be matched to the vial sold. The weak points are age and consistency. The company was entered in the Polish register on 26 August 2026, there is no independent review history yet, and measured content ranges from 20% below label (tesamorelin) to 17% above (KPV). A third of the catalog carries only an unpublished manufacturer analysis. Treat it as a promising but unproven vendor.
QIs there a PeptidProfi promo code?
Yes. Code BIOHACKTESTED gives 10% OFF at checkout on PeptidProfi. The discount does not change our rating: the score above is based on lab transparency, COA quality and third-party reputation only.
QDoes PeptidProfi provide Certificates of Analysis?
A lab-analyses page lists every product with its batch number (format PP-XXX-2601). For 14 of 21 peptides it shows a full, uncropped Janoshik Analytical report: task number, client (PeptidProfi), manufacturer (peptidprofi.de), batch, order and analysis dates, measured mg, purity and a verification key, plus a direct link to the Janoshik verification page. We read all 14 reports (tasks #216718 to #243701, analysed 7 August to 21 October 2026). The other 7 products (5-Amino-1MQ, cagrilintide, DSIP, epithalon, kisspeptin-10, PT-141, thymosin alpha-1) are labelled “Laborgeprüft” on the strength of a manufacturer analysis the vendor keeps internal and does not publish. One sample per batch, all ordered by the vendor itself. The testing laboratory is publicly identified as Janoshik Analytical (reports commissioned by the vendor), which allows the documentation to be traced to a named third party.
QWhat are the main complaints about PeptidProfi?
Very young company and shop. The company was entered in the Polish register on 26 August 2026 with the minimum share capital of PLN 5,000; the domain went live in July 2026. The first Janoshik tests were ordered on 31 July 2026, before registration (see the vendor’s explanation under unverified claims). Wide spread in measured content. Tesamorelin 10 mg: 8.02 mg at 97.804% (#243701, tested twice); SS-31 10 mg: 8.62 mg (#230637); melanotan I 10 mg: 9.27 mg (#230638). At the other end KPV 10 mg measured 11.68 mg (#230635) and selank 10 mg 11.46 mg (#243700). Purity is consistently high, fill weight is not. A third of the catalog has no published third-party report. 7 of 21 peptides carry the label “Laborgeprüft” based only on an internal manufacturer analysis that buyers cannot see. The wording is easy to read as an independent test. The vendor says these 7 are pre-order items for now and that Janoshik testing is planned for all of them. No independent reputation yet, and shop reviews are incentivised. The “4.9 of 5 from 137 verified reviews” shown in the shop is self-hosted, and the shop states that every review is rewarded with a thank-you voucher (regardless of content). We found no independently moderated review profile with a track record. Manufacturer not named. The reports list peptidprofi.de as manufacturer. The vendor treats its synthesis partner as commercially sensitive and offered to name it to us privately, but not publicly, so buyers cannot check the source. Mixed signals on research-use positioning. The shop sells insulin syringes and alcohol swabs next to a “not for human use” notice, and its affiliate programme recruits TikTok creators with a lifetime customer attribution and monthly store-credit tiers.
QWhere does PeptidProfi ship from and how fast?
Ships from within the EU (Poland or Germany depending on stock, per the vendor) to Germany, all EU states and Switzerland, tracked. Germany 5.99 EUR (free from 89 EUR), EU 14.99 EUR (free from 200 EUR), Switzerland 29.99 EUR plus import charges paid by the recipient. Dispatch 1 to 3 working days after payment.
QDoes BiohackTested earn commission from PeptidProfi?
BiohackTested earns affiliate commission on some vendor links. Commission does not affect ratings, rankings or editorial assessment, and no vendor sees a review before it is published. Weaknesses are documented for every vendor including those we earn from.
Sources
- Polish National Court Register extract (KRS 0001262775)
- Vendor lab-analyses page (batch list and Janoshik reports)
- Janoshik report #216720, BPC-157 10 mg, batch PP-BPC-2601
- Janoshik report #216718, Retatrutide 10 mg, batch PP-RETA-2601
- Janoshik report #243701, Tesamorelin 10 mg, batch PP-TESA-2601
- Vendor quality and batch process page
- Shipping and payment
- Imprint (company details)
Last reviewed: 2026-10-27. Vendor assessments are updated as new lab data and reputation signals appear.
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Independent review: This profile is an editorial directory listing based on public HPLC/COA documentation and community data. We may earn a commission on purchases through affiliate links, which does not affect our objective purity ratings.