Every peptide we supply meets a 99%+ purity specification, verified by HPLC at an independent ISO 17025 accredited laboratory. The Certificate of Analysis for each lot is published on the COAs page, and the QR code on each vial opens that lot's certificate.

Invoices are processed within 0-2 business days, and standard shipping typically arrives within 1-4 business days from fulfillment. 2-day and overnight options are available at invoicing. Every invoice ships in plain packaging and includes shipment protection at no cost. Lead-time changes are announced through Lab notices.

Payment is collected at invoicing by Visa or American Express card, Apple Pay or Google Pay; we do not extend net terms. Labs with Research Access can split an invoice of $400 or more into four payments with Business Tab.

Yes. 10+ units of any compound qualifies for 40% off, and at 50 units every unit of that compound is 50% off. For scheduled supply, the Research Panel Builder ships a set panel of 4 compounds every month at 40% off list price.

Twentyfold Labs is a US-based research supply company in Montville, New Jersey. We supply research peptides exclusively to qualified researchers and laboratories for in vitro and laboratory use, synthesized by vetted USA-based manufacturing partners and tested by independent accredited laboratories. Mailing address: 153 River Road #2, Montville, NJ 07045, US.

Yes. Everything in our library is sold strictly for in-vitro research, laboratory experimentation, and educational purposes. Products are not for human, veterinary, or food use, not for use in diagnostic procedures, and have not been evaluated by the U.S. Food and Drug Administration.

We offer damage protection on every invoice. If your shipment arrives damaged in transit, contact us with photos within 14 days of delivery for a one-time replacement. All claims require photo evidence and are subject to review. One replacement per account per invoice. Opened vials are not eligible. We do not offer refunds for change of mind or misuse. Research panel invoices are non-refundable; canceling a panel stops future shipments only.

Email support@twentyfoldlabs.com. We respond within 24 hours on business days (Monday-Friday, 9am-6pm EST). The team handles compound questions, invoice tracking, and documentation requests.