Freeze-dried powder is a pharmaceutical solution frozen into a solid state in a sterile environment, and then dried by sublimating the water into a vacuum. Freeze-dried powder contains active substances, which can hydrate and fight against free radicals, but it does not contain blemish-removing ingredients, therefore, freeze-dried powder cannot play the role of blemish-removing, but it can promote cell metabolism, thus playing the effect of lightening blemishes. When using freeze-dried powder, it can be paired with hyaluronic acid solution, which can moisturize and whiten, but cannot remove spots. Long spots are related to endocrine hormone level, sun exposure, staying up late, pigmentation and other factors. If you have long spots on your face and want to rely on freeze-dried powder to get rid of them, the effect may not be too ideal. Patients with spots on the face are recommended to go to a regular hospital for consultation to clarify the cause and take targeted measures to get rid of the spots. Patients can follow the doctor’s prescription to apply topical drugs to remove spots, such as hydroquinone cream, etc. They can also choose laser treatment and fruit acid peeling. During the treatment period, avoid eating spicy food, such as chili pepper and onion. It should also be noted that the application of hydroquinone cream must be carried out under the guidance of a doctor, and should not be applied blindly by oneself, so as not to cause adverse skin reactions.