The Haircare Ingredients Blacklist is a list of harmful ingredients that should be avoided by everyone, regardless of their hair type. If you want to learn more about other hair care ingredients, you can explore our Hairqare Lab program and access the Haircare Ingredients Bible, which includes information on hundreds of commonly used ingredients. However, the blacklist is only a small part of the Haircare Ingredients Bible and to use the complete list effectively, you need to understand your Unique Hair Profile. Therefore, access to it is only available to students of Hairqare Lab. You can also join the course once you finish the challenge.