How long does hyaluronic acid injection last?

In general, the effects of hyaluronic acid injections can last from 3 to 18 months, with the exact duration varying depending on individual constitution, lifestyle, injection site, and the type of hyaluronic acid used.

The longevity of hyaluronic acid is influenced by multiple factors. For example, individuals with faster metabolisms tend to absorb hyaluronic acid more quickly, resulting in a shorter duration. Large-molecule hyaluronic acid is firmer and metabolizes slowly, thus lasting longer, whereas small-molecule hyaluronic acid is softer and metabolizes faster, resulting in a shorter duration. Hyaluronic acid injected in areas with frequent movement, such as the lips and around the eyes, tends to be absorbed more quickly and therefore lasts a shorter time, while areas with less movement, such as the nose and chin, maintain the effects longer. To maintain the desired results, periodic touch-up injections may be necessary.

Hyaluronic acid injection is a medical aesthetic procedure; therefore, it is essential to first choose a legitimate medical facility and a qualified physician for the treatment. Before injection, you should truthfully inform your doctor about your health status, allergy history, and other relevant information to ensure that you are a suitable candidate for the injection. After the injection, follow your doctor's post-care instructions carefully. If you experience any abnormal symptoms such as severe swelling, bruising, fever, or allergic reactions, you must contact your doctor immediately.