My top lip sits much further back than my bottom, would filler help this issue? (Photo)

Although you did not mention any concerns with the appearance of your nose, it appears, from these very limited photos, that the problem is in the junction between the upper lip and the nose. In-person consultation with an expert in rhinoplasty may give you some answers to your questions. Good luck.

Facial balancing with dermal fillers is a cosmetic procedure aimed at enhancing facial symmetry and proportion by strategically injecting fillers to address volume loss, wrinkles, and asymmetry.
If you have an "M-shaped" or asymmetric lip shape that you would like to enhance, lip fillers can be a suitable option. The goal is to create balance and symmetry while preserving a natural look. Here are some considerations:
Consultation with a Professional: Schedule a consultation with a qualified and experienced cosmetic professional, such as a dermatologist or plastic surgeon. They can assess your unique lip shape and discuss your goals.
Tailored Treatment Plan: Your provider will create a personalized treatment plan to address the specific concerns associated with your M-shaped lips. This may involve injecting filler strategically to reshape and balance the lips.
Strategic Filler Placement: The filler will likely be strategically placed to add volume and redefine the lip contours. Commonly used fillers for lips contain hyaluronic acid, which provides a natural look and feel.
Natural Enhancement: Emphasize to your provider that you prefer a natural-looking result. Overfilling can lead to an unnatural appearance, so clear communication about your desired outcome is crucial.
Gradual Build-Up: In some cases, achieving the desired results may require a gradual build-up of filler over multiple sessions. This approach allows for a more subtle and controlled enhancement.
Potential Risks and Side Effects: Be aware of potential risks and side effects associated with lip filler injections, such as swelling, bruising, or temporary discomfort. Your provider should discuss these with you during the consultation.
Temporary Results: Hyaluronic acid fillers typically provide temporary results. While the duration can vary among individuals, you can expect the effects to last several months.
Remember, the key to a successful outcome is choosing a skilled professional and having clear communication about your expectations. Always prioritize safety and choose a qualified practitioner to perform the procedure.