Do your face and ears turn red too? If so this is niacin flush, from vitamin b3 (vitamin b3 is niacin). If so it is harmless. To double check get some non time delay release Niacin from GNC and take large doses, you should get the same thing. To cause it you'll need to take somewhere between 2000mg and 5000mg (not all at once, though it wont hurt you, it's annoying). Take more & more until you get a weird tingly in your face and your face turns all red. If that is what you're feeling when you do the shot we've found the culprit. If this is in fact what it is that's a good thing, there's no danger to taking too much niacin other than this irritation and it raises HDL cholesterol better than just about anything. This is why it's used as a cut, it's a very safe choice and it makes the product look closer to china white. If your #4 is cut with this don't get upset with the vendor, depending on your point of view it would be irresponsible to sell 85% pure morphine here due to overdose since the norm is 30% for OD reasons, so it's a good thing it's cut, and this is a very safe thing to cut it with. Nod