It's a reoccuring theme with niacin supplementation and happens on and off with the use of Poseidon. The waste isn't the primary cause of the flushing effects. Niacin is a potent vasodilator that opens up the small capillaries in the skin, allowing for more blood to enter, thus the redness. The flushes lessen the longer you take the product. If it get's to be to much for you try mixing it with more water, or downing it with a light protein shake..... should do the trick.