Comparing Semaglutide and Retatrutide (PX13-R) — both produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain. This research-use reference summarizes how each is classified and what each has been studied for.
Comparing Semaglutide and Retatrutide (PX13-R) — both produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain. This research-use reference summarizes how each is classified and what each has been studied for.
Semaglutide is a research peptide. Supplied as a research-grade compound for in-vitro and laboratory investigation. Our Semaglutide is produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain and third-party COA tested.
Retatrutide (PX13-R) is a research peptide. Supplied as a research-grade compound for in-vitro and laboratory investigation. Our Retatrutide (PX13-R) is produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain and third-party COA tested.
Both Semaglutide and Retatrutide (PX13-R) from PX1 are produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain, with ISO 17025 third-party COAs available. All material is sold for laboratory and research use only — this page does not offer medical guidance or dosing.
What is the difference between Semaglutide and Retatrutide (PX13-R)?
Semaglutide is a research peptide; Retatrutide (PX13-R) is a research peptide. Each has a distinct research profile — see the sections above.
Are both made in the USA?
Yes — both are produced end-to-end inside GMP-compliant U.S. laboratories with a fully domestic supply chain and ship with third-party COAs available.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.