How long does a hyaluronic acid injection last?

　　The hyaluronic acid injection (commonly known as the "water light needle") utilizes negative pressure or specialized tools to inject moisturizing and nutritive components such as hyaluronic acid and botulinum toxin directly into the dermis layer of the skin, aiming to achieve deep hydration, improve skin texture, and promote skin metabolism. The general reference price for a water light needle treatment is 1,500-3,000 yuan per session, with visible improvement typically occurring within 3-7 days. However, possible side effects include skin redness, swelling, and infection. Generally, the effects of the water light needle can last from 3 to 6 months, though this duration varies depending on individual aftercare. If you are considering receiving a water light needle treatment, it is recommended to visit a legitimate hospital and undergo the procedure under the guidance of a doctor. Detailed analysis is as follows:

　　After receiving the water light needle injection, the effects generally last for 3-6 months, with the exact duration influenced by individual physical conditions and aftercare practices. If an individual has good physical health and maintains proper skin cleansing and care, the effects may last longer, approximately 6 months. Conversely, if an individual's physical condition is poor and proper skin cleansing and care are not maintained, the effects may last only about 3 months.

　　After injection, it is important to keep the injection site clean and dry. Eating more fresh vegetables and fruits can help prevent infection. Daily sun protection is essential, avoiding UV exposure to help prolong the treatment's effects.