First: do a skin test before dyeing your hair
Generally, some allergy-causing substances will be added to the hair dye, so before dyeing the hair, we first test a little hair dye on the rejected skin to see if there is any allergic phenomenon.
Second: try not to wash your hair before dyeing
The scalp will secrete oil as a protective film to protect the scalp. Similarly, if you do not wash your hair before dyeing, you can add a protective film to reduce irritation to the scalp. In addition, many people are used to using nails to scratch the scalp when washing their hair, which will cause Let the bacteria on the hands infect the head, and the scalp is more likely to be infected when the skin is scratched, and it is easier for the hair dye to enter the bloodstream when the hair is dyed.


Third: wash the scalp in time after dyeing
Hair dye is likely to remain on the scalp after dyeing. In order to prevent it from damaging the scalp, it is necessary to wash the scalp in time after dyeing. We can use shampoo with weakly acidic isonetic ingredients that fits the ph value of the scalp. It is naturally mild and non-irritating. It can effectively cleanse the scalp deeply, and at the same time, it can also sterilize and reduce inflammation, promote the balance of water and oil on the scalp, and is very effective in improving the scalp environment. It can also effectively inhibit harmful substances from invading the scalp, making the scalp healthier.

In addition to the above 3 points that need to be paid attention to, we try to use better quality hair dyes when dyeing hair, and reduce the number of hair dyes, no more than 2 times a year.