You will usually see results in about 1 week after getting hydrafacial injections and your skin will start to look better. Hydrafacial injection is an injectable skin care type of medical aesthetic program that can be injected manually or by machine, but it is recommended that it be done under the guidance of a professional doctor. The principle of action of hydrafacial injection is to deliver hyaluronic acid and other nutrients directly to the dermis through manual injection or machine injection. Hyaluronic acid has the ability to lock in water and moisturize the skin, so when patients are injected with hyaluronic acid they will brighten their skin tone and improve dry skin conditions. Generally patients will experience a period of swelling for about 3 days after a Hyaluronic Acid injection, and will see an improvement in the condition of their skin for about 1 week, gradually getting better. The maintenance of the effect is related to the specific medication injected. For those who want to improve the condition of their skin by injecting hydrafacial injection, it is recommended to go to a regular hospital and under the guidance of a professional doctor in order to prevent any adverse consequences.