I love it! I had about 60 percent grey and 40 percent ash blond-mouse brown in the front 50/50 in the back. I used henna from Mehandi.com, and a mildly acidic kitchen mix with lemon juice. I left it on for about 4 hours. The color, texture and shine is just amazing!!!! Love it!!!

Notes and References
Henna: https://www.mehandi.com/Mehandi-com-Ancient-Sunrise-Henna-for-Hair-s/121.htm
Don’t have fruit juice on hand? Keep some fruit acid powders in your cupboard: https://www.mehandi.com/Fruit-Acid-for-henna-dye-release-s/299.htm
More info on mildly acidic mixes: https://www.tapdancinglizard.com/henna-and-acidic-mixes/
Ancient Sunrise henna for hair kits with everything included: https://www.mehandi.com/Mehandi-com-Ancient-Sunrise-Henna-for-Hair-Kits-s/124.htm
Amla: https://www.mehandi.com/Ancient-Sunrise-Amla-Powder-p/aml_01.htm
Henna time and temperature: https://www.tapdancinglizard.com/mixing-and-testing-your-henna-mix pp. 10-13
Henna color oxidizing ("rusting"): https://www.tapdancinglizard.com/mixing-and-testing-your-henna-mix/ pp.25-29
Chemical hair dye allergy: https://www.tapdancinglizard.com/henna-for-hair-2/ pp. 18-26

Video How-To
Going red with henna: https://vimeo.com/manage/videos/739464950
How to mix Ancient Sunrise Henna: https://vimeo.com/manage/videos/770522457a>