Yes, GalaFLEX can be used in selected breast surgery cases when the implant pocket is over the muscle, but the exact placement depends on the goal of the operation. It is usually used as an internal support scaffold to reinforce weak tissue, help support the lower pole, or improve pocket control. It is not simply placed “over the muscle” in every case; it has to be secured in the correct tissue plane and designed around the implant position, breast tissue thickness, and whether a lift is being done. The main questions are whether you actually need added internal support and whether your soft tissue coverage is thick enough. Potential downsides include added cost, longer surgery, infection risk, palpability or visible edges in thin tissue, and it does not replace a lift when significant sagging is present. A board-certified plastic surgeon can tell you whether mesh support is helpful for your anatomy or whether implant choice, pocket control, and/or a lift would be more important.