The links below connect to chapters of the free e-book Ancient Sunrise® Henna for Hair, a book researched and written by Catherine Cartwright-Jones PhD, a researcher who focused her graduate and doctoral work on henna. Ancient Sunrise® Henna for Hair is meant to help people understand how to dye their hair without chemicals, to protect their own health and the health of the planet they live on, to correct the misconceptions that have lead to chemical hair dye industry replacing henna, and to dispel the abundant misinformation about henna. You can download these selected chapters or download the entire book free of charge at http://www.hennaforhair.com/freebooks/
Ancient Sunrise® Chapter 6 Henna and Acidic Mixes Learn about the necessary chemistry of mixing henna and cassia with a mildly acidic liquid. This chapter discusses several sources of fruit acids, and how each has a different effect on henna.
Ancient Sunrise ® Chapter 7Mixing and Testing your Henna Mix Here is information on the mixing, dye release, formulation, and testing of a wide range of non-chemical permanent colors from henna, indigo, and cassia. This chapter includes step-by-step instructions to produce the color you want for your hair.