If you are one of the millions of people who have to wash their hair every single day, you may be shocked to learn that when it comes to shampoo, less is actually more. Making your own homemade shampoo has lots of advantages over buying it at a store. Probably the biggest reason to learn how to make shampoo is the fact that you can design the shampoo to meet your needs or to avoid any allergies. Everyone's hair is different, and you have to understand what ingredients are best to include. Some recipes are actually so easy to make that they can be done very easily in around 10 minutes.