Hyaluronic acid is good for the skin, and there are many benefits. Hyaluronic acid, also known as hyaluronic acid, is an inherent component of the skin that works to hydrate and moisturize. Hyaluronic acid is divided into three types: large molecule, medium molecule and small molecule. The degree of cross-linking of large molecule hyaluronic acid is relatively high, which is suitable for injection into the deep layer of the skin to play the role of filling and plumping up the skin; the degree of cross-linking of medium molecule hyaluronic acid is relatively low, which is suitable for filling tear troughs, lips or small horizontal wrinkles; small molecule hyaluronic acid can basically be understood as no degree of cross-linking, and its role is mainly to hydrate and rejuvenate the skin. Of course, hyaluronic acid injection should also pay attention to a very serious complication called fat embolism, which means that it is accidentally injected into the blood vessels during the process of hyaluronic acid injection. If it is injected into small blood vessels, it will cause localized redness and darkening of the skin, and the patient will experience pain. If it is injected into large blood vessels, such as the ophthalmic artery, it can lead to immediate blindness of the patient’s eyes.
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