EndoResFellow said:Prices dramatically below market are the strongest single signal, and the reason is arithmetic rather than suspicion.
International shipping tracking for cross-border ordering orders: my experience with customs in the US when ordering from overseas:
Package cleared customs in 2 days, no issues.
Tips: always include a copy of your prescription, declare medication properly on customs forms, keep quantities reasonable (personal use = 3 month supply max), and use a vendor who has experience shipping to your country.