I had two 1/2 syringes of Sculptra put in, about a month apart and I LOVE the results. My "cheek lines" that I was getting are much reduced/almost gone, and my face is fuller and younger looking. I had no bumps or lumps, but I was religious about massaging the treated area. I think the trick is getting a small amount and seeing how it works for you. I love it and will probably continue doing it unless they come up with something better! The best is looking at pictures of myself last summer versus this summer--I look MUCH younger!