Hair dyes are available in different types and some of them can cause allergies. There are different types of substances that can cause allergies after the hair coloring process. Make sure that the same techniques used for testing any allergic reactions while coloring the hair at home or it is done by the hair specialist. Here are few things that can help for testing the hair dyes for allergies.
First you must know which color looks best on your hair and select the suitable hair dye. Then mix the hair dye along with the developer in a small bowl. Take a piece of cotton and dip it in the bowl and apply it under the elbow. Use a band aid to cover the colored area and leave it for about half an hour. Now you can take the band aid out check the skin where it was colored. The signs of allergic reactions can appear at any time during 48 hours and you may also feel itching on the spot where the color was used. If you don’t find any kind of reactions during this time, use the same hair dye all over your hair. In case you find any kind of allergic reactions, try to wash the area as soon as possible using a soap and stay away from the hair dye. It is important to use the same testing process if you are visiting a saloon for coloring the hair.