It can. Black soybeans soaked in vinegar for 24 to 48 hours, together with heating and cooking, filter out the slag, and then slowly simmered into a thick paste with a small fire. This is a natural hair coloring cream, with the time, the hair washed, hair dry after the ointment can be applied, once a day. According to this book, black soybean taste sweet and flat, is a good medicine for black hair; vinegar paste is rice vinegar, with black soybean, can dye gray hair.

Mastering the correct method of hair coloring can ensure the color.

1. Make sure to keep your hair clean and dry before coloring: don't do special care such as oil baking one week before coloring; wash your hair one day before coloring; don't use styling products on the day of coloring.

2. Comb through and smooth your hair before you start coloring it. When coloring hair, no need to use a comb, please use your fingers to massage your head thoroughly until the hair coloring milk is evenly distributed on each hair strand.

3. Once the hair color is evenly distributed on the hair strands, do not cover or wrap the hair, make sure to let the hair spread freely so that it is fully exposed to the air and the coloring ingredients can work to their fullest potential.