In order to complete the first mission, you can analyse all the other products that you use on your hair. For example, conditioners, serums, oils, hair masks and so on. All of these can still contain blacklist ingredients that you will not want in your routine. If you find that these are ok, then it seems that your routine is already clean and you are ready for the next mission! However, keep in mind that some shampoo alternatives are not to be used regularly ACV and Bicarbonate of Soda are both fairly harsh so make sure that your using them at the correct frequency to avoid any damage to your hair or irritation to your scalp!