Generally recommended white vinegar is not the edible colored red vinegar. And not just any white vinegar can be used. When buying it, be sure to look carefully and choose white vinegar that is labeled "brewed from pure grains" rather than blended with chemicals. The latter is too irritating and is not suitable for use as a beauty product. Be sure to add a small amount when using it, 5-7 drops is enough. No need to wash with water after use. Pat it dry with both hands and then follow your normal skin care routine. Apply whatever you need.