How long does it take for hyaluronic acid injections to take effect?

Generally, the principle of hyaluronic acid injections involves using microneedle injection technology to deliver moisturizing and nutritive components such as hyaluronic acid directly into the dermis layer of the skin, aiming to replenish moisture, improve skin quality, and promote skin metabolism. The usual reference price for this procedure ranges from 1500 to 3000 yuan per session, with visible improvement typically observed within 3 to 7 days. This procedure should be performed at a legitimate hospital. Detailed explanations are as follows:

If the skin condition is already good—for instance, if the skin is not particularly dry and the metabolism rate is fast—the nutrients from the hyaluronic acid injection can be quickly absorbed and utilized. Additionally, if the injected solution is relatively simple, such as merely a hydrating formula, or if the injection depth is shallow, only affecting the epidermis, under these favorable conditions, visible improvement may be seen in as little as 3 days.

If the skin condition is poor—for example, if the skin is dry or dehydrated and the metabolic rate is slow—the body's processing speed of these exogenous nutrients will be relatively slow. Meanwhile, if a compound hyaluronic acid injection containing multiple nutrients is administered, or if the injection is deep, aiming to achieve deep hydration or improve deep wrinkles, the effects may take longer to become apparent. In these situations, you may need to wait up to 7 days to see visible improvement.

It is recommended to avoid contact with water for 24 hours after the injection to keep the injection sites clean and prevent infection. Afterwards, it is also important to avoid rubbing the injection areas, strictly protect against sun exposure, and use lukewarm water to gently cleanse the face.