Actually you have much more room for variance than that. Cayenne pepper can be bought in many forms;
Buying ORGANIC cayenne pepper pills/ capsuls allows you to take away the spicyness of the cleanse completely by just drinking the lemonade without the cayenne physically added to it.
It is very important to still take the cayenne in one form or another because it loosens mucous and promotes blood flow. A quick google search will tell you all of its benefits.