Dermal fillers using hyaluronic acid are a popular choice for enhancing facial features and reducing the appearance of wrinkles. Hyaluronic acid is a natural substance found in the body that helps maintain skin hydration and volume. When used as a dermal filler, it can add volume to areas like the cheeks, lips, and nasolabial folds. The results are temporary and typically last several months to a year, depending on factors like the specific product used and individual metabolism.