Hello, I have been a hairstylist for five years and will answer your questions from a professional perspective.

Most hair dyes now do not contain heavy metals and are less harmful to the skin. .But first make sure you have no history of allergies. If you are not sure, you can first mix a little hair dye with hydrogen peroxide milk (hydrogen peroxide milk is a white milky liquid mixed with hair dye), apply it behind the ears for 30 minutes and observe if there is no sting, redness or swelling. Use.

Another note. If you dye your hair black, I do not recommend using black oil-based baking creams. This type of baking cream is different from hair dye, and long-term use will cause certain harm to the body. You can use 10% of the hair dye. Dark brown (very dark brown is natural black) color number is 3/0.

Relatively speaking, better baking creams include L'Oreal, Schwarzkopf, and Windeba, with prices ranging from 60 to 80 yuan. Hydrogen peroxide milk...

If you have problems with dyeing your own hair, you can ask me... Because if you are not a professional, you will encounter many problems when dyeing your own hair. The use of dye cream and hydrogen peroxide milk is related to The mixing ratio is difficult to control.

Hope it will be adopted. Thank you...