Rierink updates: 3 new briefings + 5 new site languages

[Rierink]

Rierink updates — 11 Nov 2026

Three new research briefings
Each one summarises published favorable and unfavorable findings, with references:
• Pinealon — https://rierink.com/en/blog/favorable-and-unfavorable-findings-on-pinealon
• Ara-290 (cibinetide) — https://rierink.com/en/blog/favorable-and-unfavorable-findings-on-ara-290
• Selank — https://rierink.com/en/blog/favorable-and-unfavorable-findings-on-selank
All briefings: https://rierink.com/en/blog

rierink.com now speaks 8 languages
Alongside English, Dutch and Portuguese, the site is now also available in German, French, Spanish, Italian and Polish (rierink.com/de, /fr, /es, /it, /pl).

Testing & shipping
• Independent testing via Janoshik and Analiza Białek: https://rierink.com/en/testing-fund
• Shipping from the EU, expanding worldwide — express via DHL, UPS and FedEx: https://rierink.com/en/shipping

Contact
rierink.com · WhatsApp (number on rierink.com) · t.me/rierinkcom · [email protected]

Made in EU.
For laboratory research use only. Not for human or veterinary use.

 

[Rierink]

Testing Fund update — 4 of our own lots sent for independent testing

Samples from four Rierink lots went to Analiza Białek (Wrocław, Poland; HPLC + LC-MS) on 10 Nov 2026, for purity and identity:
• Retatrutide 40 mg — lot RR-RGT-3001-014
• Retatrutide 20 mg — lot RR-RGT-7252-422
• Tirzepatide 20 mg — lot RR-TZP-5652-723
• Semaglutide 30 mg — lot RR-SEMA-3003-041

Reports will be published on the Testing Fund page with their verification links as soon as they're in. No results yet.

The pool is open again for the next test (currently voted: Retatrutide 30 mg). Vote or follow progress, and see the public ledger: https://rierink.com/en/testing-fund
Rierink chooses which independent laboratory (Janoshik Analytical or Analiza Białek) each batch goes to.

Contact
rierink.com · WhatsApp (number on rierink.com) · t.me/rierinkcom · [email protected]

Made in EU.
For laboratory research use only. Not for human or veterinary use.