What Is The Injection Depth of Restylane at the Lips? 3 Months Later I Still Have Vertical Lines.

Could someone please tell me what the depth of the injection of Restylane for the lips is? Would the injection be subcutaneous, or deeper? I'm currently having Restylane injections around the lip line and even 3 months after injection, I have vertical lines on the lips from the Restylane which I never had before. You can see lumps and bumps from the Restylane. Other people I see that have the Restylane injections for the lips do not have these visible lumps and bumps.