Absolutely! I do not have access to organic citrus without driving an hour and a half one way to a Whole Foods on a light traffic day. I buy my bags of lemons at Sam's and they keep well so it only took me 4-5 bags for a 30 day cleanse. Many others of us also have the same predicament, so do not feel alone. You can also use limes for variation. Try to get some organic cayenne with the highest HU possible.
If you need more info on why, check out this link to info on cayenne...