The difference between hydrafacial injection and hyaluronic acid is mainly different in ingredients and efficacy. Ingredients: hydrafacial injection is a kind of compound drug. Clinically, doctors will combine different drug components according to different treatment purposes, such as single molecule hyaluronic acid, small molecular weight vitamin C, tranexamic acid, botulinum toxin and other drugs with different combinations. Hyaluronic acid, also known as sodium hyaluronate, is a single ingredient, in addition to being made into a drug or a substance in normal skin tissue. Efficacy: Hydrafacial injection is mainly used for whitening, lightening scarring and other treatments, and its also has the effect of shrinking pores and brightening skin tone. And hyaluronic acid in addition to water light injection, improve facial skin quality, but also can be used for facial filler, such as facial depression or rhinoplasty, jaw augmentation treatment, including facial contour modification. Therefore, it is recommended that patients can regular hospitals according to the actual needs to choose different types of drugs for treatment.