I did. But my girl didn't out of the same vials and others did not at all either. I honestly don't think the ratio has anything to do with welts. Someone went more than double that and still got them, just injected more water than they needed to. It seems to really be based off of the person. The ones I get don't itch, they're just a little sore and last about 3 days. I just alternate about 6 spots around my belly button clockwise. Looks like an app loading spinner haha. But I'll be 2 weeks in on Monday and they seem to starting to fade each day like my body's adjusting and I won't be getting them soon.