Yes. Peptide Sciences™ is a legitimate, established peptide research supply company. Our legitimacy is demonstrated by:

• In-house analytical testing (HPLC and Mass Spectrometry) for every batch

• Published Certificates of Analysis (COAs) showing exact purity percentages

• GMP-compliant manufacturing partners

• Thousands of verified research customers including universities, biotech labs, and CROs worldwide

• Transparent business practices — we clearly state our products are for research use only

We recommend any researcher review our COAs, customer reviews, and contact our support team to verify our credentials before purchasing.

Peptide Sciences™ is a specialized peptide synthesis company that manufactures and supplies highly purified peptides, proteins, and amino acid derivatives for scientific research and development. We utilize automated and manual solid-phase peptide synthesis (SPPS) technology alongside in-house analytical testing (HPLC-MS) to verify purity, identity, and sequential accuracy. Our catalog includes research peptides such as BPC-157, tirzepatide, retatrutide, semaglutide, and tesamorelin — all exceeding 99% purity unless otherwise specified. We are not a compounding pharmacy, a clinic, or a supplement company.

Currently, Peptide Sciences™ focuses exclusively on peptide, protein, and amino acid derivative synthesis. We do not sell bacteriostatic water, sterile water, or any reconstitution solutions. Researchers should source bacteriostatic water from licensed medical or laboratory supply vendors. We recommend consulting your institutional guidelines for appropriate reconstitution protocols.

No. Peptide Sciences™ is not a compounding pharmacy. We are a research peptide supply company specializing in the synthesis of high-purity peptides, proteins, and amino acid derivatives for laboratory research and development only. Unlike compounding pharmacies, we do not prepare customized medications for human or animal use. Our products are strictly sold for in-vitro and preclinical research purposes and are not intended for diagnostic, therapeutic, or human consumption.

Yes. As a full-scale peptide sciences company, we offer bulk science bio peptides in gram to kilogram quantities. Contact our research team for custom synthesis and volume pricing.

Our tesamorelin peptide sciences product consistently tests at ≥98% purity with verified GHRH activity via cell-based assay.

Peptide sciences tirzepatide targets both GIP and GLP-1 receptors, while peptide sciences semaglutide targets only GLP-1. Dual agonism may produce distinct metabolic research outcomes.

Peptide sciences BPC-157 is studied for its effects on wound healing, tendon-to-bone healing, inflammatory bowel disease models, and neuroprotection. Our BPC-157 has been cited in over 100 peer-reviewed studies.

Tesamorelin peptide sciences should be stored lyophilized at -20°C. After reconstitution, use within 7 days at 4°C.

Yes. Peptide sciences tirzepatide and all other products ship to over 40 countries. Import restrictions vary — check your local regulations before ordering.

Every order receives a real-time tracking number. Science peptide shipments are discreetly labeled for customs clearance.

Yes. All bio science peptides intended for cell culture applications undergo endotoxin testing (<1 EU/mg).

Yes. If an independent third-party lab finds our reported peptide sciences purity to be off by more than 1.5%, we offer a full replacement or refund.