Thank you for your question. In my opinion, Hyaluronic Acid fillers such as Juvederm and Restylane are the safest for lip augmentation. This is because hyaluronic acid is naturally found in the body and there are minimal side effects. Some side effects include swelling, bruises, and some redness. You will be able to see results immediately and it typically lasts 6-12 months. I recommend having a consultation with an expert injector to determine the best treatment plan for you. Best of Luck!
Hyaluronic Acid Filler is the most popular category of wrinkle fillers. Hyaluronic acid—found naturally in the skin, where it provides moisture, plumpness, firmness, and suppleness to skin—is the ingredient used in these fillers. Since your body produces less hyaluronic acid over time, these fillers can add volume back in the most natural looking way possible. Hyaluronic acid also attracts water to the surface of the skin keeping it fresh and supple. Some research also shows that repeated injections may help stimulate your own production of the skin-firming protein collagen.