Keep in mind that the more "natural" less chemicals, the shorter the lasting time. You will need to touch up more often. So price other options against one another with that in mind.

Try searching for these items. I am not saying they do or don't use animal testing, but they are more likely not to. Worth investigating further.

- Herbavita Vegetal Temporary Hair Color
http://www.natural-living.com/herbatint_temp.php

- Herbatint 800-462-0666
http://www.herbatint.co.uk/index.php

Naturcolor (permanent) (800) 462-0666

Pure Vegetable Hair Colors (henna and plant-based color) (800) 648-6654

Rainbow Henna (pure henna) (800) 722-9595

Ve Borne (permanent) (805) 981-1472

Indian Fire (natural vegetable color)

Igo Fleur (semi-permanent) (800) 234-4672 ext. 175

Paul Penders Color Me Naturally (temporary)

Light Mountain Henna Gray (pure henna) (800) 824-6396

Above taken from this:
http://findarticles.com/p/articles/m...3/ai_21034492/

Read this as well for leads:
http://www.natural-living-for-women....air-color.html

I need to check one more place, so I may add to this for you.