PEPXEN Biotechnologies — premium research peptides made in Japan.
We supply highly purified research peptides directly from pharmaceutical facilities in Japan that operate to GMP and PMDA standards — among the strictest in the world.
Every batch undergoes HPLC analysis and mass spectrometry in independent labs. A Certificate of Analysis (CoA) — with the chromatogram, purity, and molecular mass — accompanies every vial. We don’t ask you to take our word for it; we provide the lab data.
Our logistics are built around one principle: the peptide must reach you in the same condition it left the lab. Every parcel ships with a cold pack and thermal packaging, keeping 2–8 °C at every stage.
Synthesis at GMP/PMDA facilities, HPLC control of every batch — purity no lower than 98%.
Cold pack and thermal packaging in every parcel. 2–8 °C from the lab to your city.
Russia and Thailand. Dispatch within 1–2 business days, a tracking number for every order.
We work directly with Japanese manufacturers — every vial comes first-hand.
CoA with the chromatogram, purity data, molecular mass, and storage conditions.
Consultations on Telegram: product selection, reconstitution, storage, and any questions.
Reach out any way you like — we reply fast.
Fast answers, consultation, and order support.
Documents, wholesale requests, and partnerships.