I'm looking for a creditcard payment processor for unscheduled substances, specifically nootropics (smart drugs). We're staying away from recreational drugs, so I expect a low chargeback rate, similar to regular webshops. Nevertheless, most processors shy away from any kind of unscheduled substances. Payment processors in China would have the problem of the customers' banks rejecting the payments or calling for verification, so I think I'd be looking for something PCI-compliant in the US. Alternatively an offshore processor that is known to be reliable and that doesn't get flagged by banks. General advice and offers are welcome.