I learned a lot reading this book. I now understand where oils come from, how they are processed, which ones are preferred, and what they are used for. The author also includes many great recipes for skin care products. The topics of proper storage and sterilization of the implements used are also covered. If you wanted to go into the business of making skin care products this book is an excellent primer. If you just want to make a few things and experiment, you will quickly realize that an investment in many products may be required to complete the recipes offered here. I'll keep this book around. It's a great resource, and I enjoyed reading it.