Can I get a refund or chargeback if an order goes wrong?

It depends on how you paid and what went wrong. Most research-peptide vendors mark all sales final and offer no returns, since they can't re-certify product once it leaves their hands. So your real recourse is usually the payment method, not the seller's policy. If you paid by credit card, the Fair Credit Billing Act gives you a window to dispute. Per the FTC and CFPB, you generally have 60 days from the first statement showing the charge to dispute it in writing, and "billing errors" include items you never received or that weren't delivered as agreed. The catch: the CFPB notes disputes purely about the quality of an item usually don't count as billing errors, and card networks may expect you to try to return it or resolve with the merchant first. Crypto is the weak spot. On-chain payments are irreversible, so once confirmed there's no chargeback and no recourse. Crypto-only checkout is a common red flag for that reason. These products are sold for research use, not human consumption. For any health concern, talk to a licensed provider.