Care of Face Always perform a skin test, as indicated on the box of 48-72 hours for the color of your hair. This is especially important if you have a permanent dye, which can sometimes lead to an allergic reaction, from mild to life threatening. You must test each time you color - not only the first time that a particular brand. Read the instructions twice, just skimming them is a recipe for potential disaster. Get a friend to help you apply the product, if possible, because this is so much easier. Work section by section with a wide toothed comb instead of just rubbing dollops coincidence in your hair. If you want to go darker always use a semi-permanent or tone-on-tone color. These contain no ammonia and only very low levels of peroxide so they simply add color and will slowly decay. If you want to go brighter and use a semi-permanent if you just want a slight tint, but if you have a really clear result - ie a bright red, you can usually use a permanent color. |  |
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