Can Sculptra be injected in the chin pad to thicken the skin in that area? (Photo)

While Sculptra is a possibility. It is relatively expensive and typically requires around three treatment sessions to achieve results. For this reason, I gave up using Sculptra a decade again, especially when robust HA fillers that had far more durable results came on the scene. HA fillers have the additional advantage of yielding immediate, i.e. on-the-spot results in most often a "one and done" treatment session. And, if for any reason the results need to be reversed, a dissolving enzyme can be used to do so--something that also cannot be done with Sculptra. Make sure to consult an experienced, board certified cosmetic dermatologist and best of luck.