Support
Frequently Asked Questions
WHAT EXACTLY IS A RESEARCH PEPTIDE?+
A short chain of amino acids synthesized for in-vitro and preclinical experiments. Everything we sell is strictly for laboratory work — not for human or veterinary use.
HOW DO YOU VERIFY PURITY?+
Each lot is sent to an independent, accredited lab for HPLC and mass-spec analysis before we release it.
DO YOU SHIP INTERNATIONALLY?+
Not yet. We ship within the United States only — keeping the lane narrow lets us guarantee fast dispatch and chain-of-custody without getting tangled in customs regimes.
AM I ELIGIBLE TO PLACE AN ORDER?+
Orders are restricted to qualified researchers, institutions, and lab buyers. By checking out you confirm you are 21 or older and that the compounds will be handled in accordance with all applicable laws for research purposes only.
HOW FAST WILL MY ORDER GO OUT?+
Same business day for orders placed before 1pm EST. Anything after the cutoff ships the following business day. Tracking is emailed automatically once the label is generated.
CAN I TRACK MY SHIPMENT?+
Yes — a tracking link lands in your inbox the moment your package leaves us, and you can follow it through delivery.
WHICH PAYMENT METHODS DO YOU ACCEPT?+
All major credit and debit cards (Visa, Mastercard, Amex, Discover), plus PayPal, Shop Pay, Apple Pay, Google Pay, and Venmo at checkout.
WHY ORDER FROM ZERILYX?+
Tight catalog, signed third-party assays on every batch, same-day domestic dispatch, and a replacement guarantee if a lot ever falls short of spec.