Would Sculptra help my boxy backside? (photo)

I'm 5' and 100lbs. I'm active and very petite. I don't have anywhere close to enough fat to do a transfer. I've tried improving my backside with workout plans focussed on weights and squats, but at most it just makes my hip dips worse. I'm not aiming for a Kim K look, but I really want to be less boxy/ no hip dips. Would sculptra be able to help me? as it's not the most realistic for me to go through surgery right now