Comparing Semax and Selank — both manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports. This research-use reference summarizes how each is classified and what each has been studied for.
Comparing Semax and Selank — both manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports. This research-use reference summarizes how each is classified and what each has been studied for.
Semax is a acth(4-10) regulatory peptide analog. Investigated in preclinical models for neurotrophic signaling, BDNF-pathway expression and cellular responses to neurological stress. Our Semax is manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports and third-party COA tested.
Selank is a tuftsin-derived regulatory peptide. Investigated in preclinical neuropeptide models for GABAergic, serotonergic and immune-signaling effects. Our Selank is manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports and third-party COA tested.
Both Semax and Selank from PX1 are manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports, 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 Semax and Selank?
Semax is a acth(4-10) regulatory peptide analog; Selank is a tuftsin-derived regulatory peptide. Each has a distinct research profile — see the sections above.
Are both made in the USA?
Yes — both are manufactured, lyophilized and packaged in the USA — no overseas manufacturing, no imports 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.