The Nova Studio. It was a very informative class and if you are interested in taking the class, I would recommend checking out the studio's website to see if the class will be offered again. It is well worth it. In the meantime, if you are interested in learning the basics of shampoo, you may want to read a posting on the Point of Interest's site called Back to the Very Basics: Shampoos. It may lead you down the yellow brick road on how to make your very own shampoo.