Using this Divine Semi - Permanent Gel Hair Colour is easy. First, make sure to do a patch test on a small area of your skin. Wait 24 - 48 hours to check for any allergic reactions. If all is well, you're ready to colour your hair. Squeeze the gel from the 3 oz. aluminum tube and apply it evenly to your hair. The gel base makes it easy to place the colour accurately. Leave it on for the recommended time. Since no developer is required, there's no need for mixing. After rinsing, your hair will have a rich, medium violet - based red colour that lasts through 40+ shampoos. To keep your hair looking its best, use products with lactic acid and castor seed oil, as they are in the hair colour formula. These ingredients will help condition, moisturize and strengthen your hair. If you notice any redness or itching during or after use, stop using the product immediately.