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Browse our full catalog of research-grade peptides. Every batch is third-party tested for purity and backed by a Certificate of Analysis you can review before you order.

PT-141
Hormonal Peptide
PT-141 is a research-grade bremelanotide peptide supplied by PrimeTime BioLabs for laboratory and in-vitro research use only. PT-141 is the research designation commonly used alongside the generic name bremelanotide, a synthetic melanocortin receptor agonist studied in the scientific literature for its activity within central nervous system signaling pathways — a mechanism distinct from the peripheral vascular pathways studied in other research compounds. Each unit ships as a single-use, light-protected vial with a lot-specific label for batch traceability, and every batch carries third-party testing for purity, identity, and sterility, with a matching Certificate of Analysis available for download. PT-141 is not a drug, dietary supplement, or cosmetic, carries no FDA approval, and is intended strictly for qualified research personnel — not for human or animal use.
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IGF1-LR3
Hormonal Peptide
IGF1-LR3 is a research-grade preparation of Long R3 IGF-1 — an engineered analog of insulin-like growth factor 1 (IGF-1) — supplied as a single-use lyophilized vial with a batch-matched Certificate of Analysis. It's positioned for laboratory researchers studying IGF-1 receptor signaling, IGF-binding-protein (IGFBP) interactions, and related cell-growth pathways, not for human or animal use.
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