Are these products for human consumption?+
No. All X Factor products are sold strictly for in vitro / non-clinical research use only. They are not foods, drugs, dietary supplements, or cosmetics, and are not intended to diagnose, treat, cure, or prevent any disease.
Who can buy from X Factor?+
Qualified researchers, laboratory professionals, and licensed institutions, 21 or older, located in the United States. Buyers must attest to research-use intent at age gate and at checkout.
How is purity verified?+
Every batch is tested by HPLC for purity and LC-MS for identity confirmation. Per-batch COAs are linked from each product page.
How should research material be stored?+
Lyophilized peptide powder should be stored at −20°C, light-protected. Reconstitution and stability are determined by the end researcher; no use-window or dosing guidance is provided. Specific identification notes are listed on each product page.
Why is X Factor different?+
We publish the receptor, the signaling cascade, and the cited preclinical literature on every product page. Most RUO suppliers don't. Researchers don't have to take our word — they can read the literature themselves. See the full Research Library.
Where do you ship from?+
Maryland, USA. Shipping is 3–7 business days via tracked carrier (USPS or UPS). Cold-chain shipping is available on request for temperature-sensitive material.
What countries do you ship to?+
United States only at this time, including all 50 states (subject to state-specific compound restrictions disclosed at checkout). We do not ship internationally.
Do you accept credit cards?+
Yes. Card processing is handled by a trusted payment processor. ACH bank transfer and wire are also accepted; we do not accept cryptocurrency. All transactions are encrypted and PCI-compliant.
How do I track my order?+
A tracking link is emailed to the order address as soon as the carrier scans the package. If you have not received a tracking email once your order ships, contact research@xfactorpeptidelab.com.
Do you offer wholesale or institutional pricing?+
Yes. Institutional and bulk research orders are quoted directly. Email research@xfactorpeptidelab.com with your institution affiliation, the SKUs of interest, and quantities; we'll respond within one business day.
What is your refund policy?+
Due to the research-grade nature and chain-of-custody requirements, all sales are final once shipped. Damaged-in-transit replacement and manufacturing-defect replacement are covered — see our Refund & Return Policy.
Where can I find your COAs?+
Each product detail page links the per-batch COA. The lot number on your vial corresponds to a PDF stored at /coa/<LOT>.pdf. If you cannot locate a COA for a lot, request one at research@xfactorpeptidelab.com.
Are these products legal?+
All compounds in the X Factor catalog are sold for research use only as research reagents. They are not foods, drugs, supplements, or cosmetics, and are not intended for human or veterinary use. Sale and possession of research chemicals is governed by state and federal law; the buyer is responsible for compliance in their jurisdiction.
How do I contact research support?+
Email research@xfactorpeptidelab.com. Response time is one business day or less.
