With Nexxus Aloe Rid, your scalp will be cleaned from the oils and toxins it has. Pair this product with the Ultra Cleanse Shampoo, and any residual buildup, environmental pollutants, impurities, and chemicals will be washed away. This works especially well if water based substances are present in the hair (such as cocaine or amphetamines). With this five-ounce shampoo and the Ultra Cleanse Shampoo, you will never have to worry about passing a hair drug test ever again. This product will help you pass a hair drug test but it is NOT to be used by itself.