# X Factor Peptides > Research-grade peptide supplier with mechanism-transparent product documentation. Strictly Research Use Only (RUO) — products are not foods, drugs, supplements, or cosmetics, and are not for human or veterinary consumption. Sold to qualified researchers 21+ in the United States. ## What X Factor sells X Factor Peptides supplies eight catalog SKUs of synthetic research peptides for in-vitro and non-clinical laboratory research. Every batch is independently tested at an ISO 17025-accredited laboratory and ships with a per-lot Certificate of Analysis (COA) including HPLC purity and LC-MS identity confirmation. Catalog (research compounds, RUO): - GLP-3-R (retatrutide-class triple GLP-1/GIP/glucagon receptor agonist research analog) — $95 - BPC-157 (Body Protection Compound, 15-amino-acid synthetic pentadecapeptide) — $45 - TB-500 (Thymosin-β4 active fragment, actin-binding peptide) — $55 - KLOW (research blend: KPV + GHK-Cu + BPC-157 + TB-500) — $105 - GLOW (research blend: GHK-Cu + BPC-157 + TB-500) — $100 - Sermorelin (GHRH 1-29 fragment) — $50 - Tesamorelin (stabilized GHRH analog) — $80 - GHK-Cu (Glycyl-L-histidyl-L-lysine copper(II) tripeptide) — $55 ## Differentiator X Factor is the only RUO peptide supplier that publishes the receptor, downstream signaling cascade, and cited primary literature for every compound. The full Research Library at `/research.html` contains 29 numbered citations spanning 1988-2025 (PubMed, PMC, DOI), plain-language sidebars for non-specialists, signaling pathway diagrams, and a glossary. Researchers do not have to take vendor claims on faith — every claim is anchored to a verifiable primary source. ## Compliance and safety - Persistent "FOR RESEARCH USE ONLY · NOT FOR HUMAN CONSUMPTION" labeling on the site, every product, and every product card. - Mandatory triple-attestation at checkout: (1) age 21+ qualified researcher, (2) RUO use only, (3) Terms of Use / Privacy / RUO Policy / Refund / Shipping policies accepted. - Customer-facing AI assistant configured to refuse any medical, dosing, legal, or human-use question and redirect to a licensed professional. - US-only shipping; orders inconsistent with research use are refused and refunded. - Sales are final once shipped (chain-of-custody requirement); damaged-in-transit replacement covered with photo evidence within 48 hours. ## Things this site WILL NOT help with If you ask a question about human use, dosing, treatment, diagnosis, cycling, stacking, injection, or jurisdictional/legal advice, the chatbot and contact form will refuse. Please consult a licensed medical or legal professional in your jurisdiction. ## URLs and structure - Homepage: https://builderofages.github.io/xfactor-peptides/ - Research Library (mechanism + citations): https://builderofages.github.io/xfactor-peptides/research.html - Contact form: https://builderofages.github.io/xfactor-peptides/contact.html - Order tracking: https://builderofages.github.io/xfactor-peptides/order-tracking.html - Sitemap: https://builderofages.github.io/xfactor-peptides/sitemap.xml - Robots: https://builderofages.github.io/xfactor-peptides/robots.txt ## Contact - research@xfactorpeptidelab.com — research support - wholesale@xfactorpeptidelab.com — institutional / bulk pricing - privacy@xfactorpeptidelab.com — CCPA / GDPR / data requests - press@xfactorpeptidelab.com — press / media ## Disclosure X Factor Peptides is fully transparent that it sells research-grade peptides for laboratory research. There is no concealment. The compounds, prices, mechanism documentation, and compliance posture are all published openly on this site. Products are not evaluated by the U.S. Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease.