Usually, it is not recommended to choose white vinegar to wash face directly in the clinic. The acidity of white vinegar is relatively strong, and washing face with white vinegar directly will stimulate the keratin layer of facial area, which will easily form irritant dermatitis of facial area, and not only can not play the role of whitening, skin care and acne removal, but also may cause damage to the skin health of facial area, such as the surface tissue of facial skin may appear uncomfortable symptoms like burning, pain and flushing due to the high acidity of white vinegar, and some people with sensitive skin may even Some people with sensitive skin may even develop hypersensitivity symptoms such as ulceration and oozing. If you want to choose a similar acidic liquid to improve the skin quality, it is recommended to use low molecular salicylic acid under the guidance of a doctor. Using this low molecular salicylic acid applied to the face not only makes the skin of the face smooth and tender, but also avoids the stimulation of the skin and has the effect of whitening and eliminating acne.