I’m an ambassador for a local distributor of both SIS and Nduranz products (and many more). I’ve been using SIS and Nduranz for fueling my workouts and for recovery for over a year now and I’m not planning to change that. I find that both taste very good, mix well and are easy on the stomach, which is all I need. I sometimes drink a rego drink during my 1st and 2nd morning workout and have no GI issues because of it.
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