PurePep Vital was built to fix a gap in the research peptide market: a genuinely independent, multi-vendor comparison resource that puts documentation quality and researcher trust first. We are not a peptide vendor. We do not run a lab. We compare suppliers so you do not have to start from scratch.
Founder & Editor-in-Chief, PurePep Vital
Soheil Asefi founded PurePep Vital to solve a problem he experienced firsthand: the research peptide market had no independent, multi-vendor comparison resource that put documentation quality and transparency first. He built PurePep Vital to give laboratories and researchers a single hub to compare vendors side-by-side, evaluate COA practices, and access science-reviewed educational content — without the noise of single-vendor affiliate sites. He oversees editorial direction, vendor evaluation methodology, and the deals hub.
View profile →The research peptide market has a credibility problem. Dozens of vendors operate with minimal documentation transparency, and most "comparison" sites are thin affiliate pages that always conclude the same vendor wins. Researchers end up sourcing from suppliers they cannot fully evaluate — not because better options do not exist, but because the information is not organised.
PurePep Vital was built to change that. We compare vendors on COA documentation quality, catalog breadth, pricing value, and checkout experience — using a consistent written methodology. Our featured affiliate partner is Live Alpha Labs, and we are transparent about that relationship. We also score and link our sister brands BluGen and Halo on the same criteria, because researchers deserve a real three-vendor comparison — not a single-vendor funnel dressed up as one.
Sister brands BluGen (getblugen.com) and Halo (halobuilt.com) are live on our multi-vendor offer tables—see BluGen profile and Halo profile.
All compound mechanism content, COA interpretation guides, and regulatory coverage is reviewed by our Ph.D.-level science contributors before publication.
Dr. Elena Vasquez, Ph.D.
Ph.D. Biochemistry · Lead Science Editor
Dr. Vasquez holds a Ph.D. in Biochemistry and has contributed peer-reviewed work on peptide signaling pathways and receptor-ligand binding kinetics. She serves as Lead Science Editor for PurePep Vital, reviewing all educational content for accuracy, mechanistic precision, and RUO compliance. Her research focus includes GPCR-mediated peptide cascades and in vitro assay design for growth hormone secretagogues.
View profile →Dr. Marcus Webb, Ph.D.
Ph.D. Molecular Pharmacology · Science Contributor
Dr. Webb is a molecular pharmacologist specialising in drug-receptor interaction studies and peptide-based therapeutic leads in preclinical models. His research examines GLP-1 receptor binding kinetics and downstream cAMP signalling in islet cell research. He contributes compound mechanism content and COA interpretation guides to PurePep Vital, with a focus on metabolic peptides and incretin biology.
View profile →Dr. Priya Nair, Ph.D.
Ph.D. Endocrinology · Science Contributor
Dr. Nair specialises in the hypothalamic-pituitary-somatotropic axis and has contributed to preclinical studies on GHRH analogs, GH secretagogues, and peptide-mediated IGF-1 regulation. She reviews content on hormone-axis peptides, storage stability literature, and documentation quality standards for research suppliers at PurePep Vital.
View profile →Our editorial standards and review methodology are published at editorial-standards.
Every long-form guide, compound profile, and comparison page follows the same pipeline: topic selection from researcher search demand and regulatory news, first draft by a named contributor, science review by a Ph.D. editor, compliance pass for research-use-only (RUO) language, and a dated "Last reviewed" stamp when pricing or policy context changes.
How we verify COA claims: PurePep Vital does not operate an analytical laboratory. We evaluate whether vendors advertise batch-specific third-party HPLC and mass-spectrometry documentation, whether COA PDFs include lot numbers, and whether product pages state purity thresholds. When we publish list prices from BluGen, Halo, or Live Alpha Labs, those figures are editorial snapshots—researchers must download the batch COA for the vial they receive. See how to read a peptide COA.
Review cadence: High-traffic compound and vendor pages are reviewed at least quarterly; FDA and vendor-closure news is updated within days of primary-source publication. Authority guides launched in May 2026 (semaglutide sourcing, tirzepatide sourcing, TB-500, GHK-Cu, legal USA framing, GLP-1 selection) carry schema dates aligned to guide-dates.ts.
State of operation: PurePep Vital is an editorial publisher and deal tracker headquartered in the United States, linking to third-party retailers. We do not compound, prescribe, or ship peptides.
Contact: Vendor corrections, COA documentation tips, and editorial feedback — contact page (typical response window 2–5 business days).
We prioritise vendors with batch-specific, third-party COAs confirming purity via HPLC and identity via mass spectrometry. In-house-only testing is flagged.
We assess how many research peptide categories a vendor covers and whether key compounds in each category are consistently stocked.
Price-per-milligram comparison across commonly ordered research compounds, accounting for vial size and formulation differences.
Vendors that accept credit cards (Visa, MC, Amex, Discover) score higher than those requiring cryptocurrency or wire transfers only.
Browse the vendor comparison table, read compound mechanism guides, or use the peptide calculator. All content is research-use-only.
PurePep Vital was founded by Soheil Asefi. The editorial team includes Ph.D.-level science contributors who review compound mechanism content, COA interpretation guides, and regulatory coverage for accuracy. We are an independent comparison and education resource — not a peptide vendor, lab, or pharmacy.