Toolman Im in my mid twenties...Im real lean and all but there is that chin blubness that pisses me off. Phosphatidylcholine is somethig I need to look up then.... I have honestly tried in twice.one shot on each side of the fat under my chin aout 3 months ago...went well..no blood, just felt the soreness a bit. I figure its because your facial skin is much more sensative.. felt the bump for about a day but it all went away after a day and didnt feel any discomfort at all....I assume there are lots of blood vessels in the face that is why I discontinued doing it until I found out how safe it was to inect in that spot.. thanks again for you you guy's responses.