It still seems to be unclear that the “veganity” of a product should be doubly important for cosmetic products.
Therefore:
1. make sure that no animal ingredients are contained.
2. inform yourself thoroughly whether the product has not been tested on animals.
vegan kitchen’s recommendation is therefore the Manic Panic brand:
Store hair dyes and bleaches online
Or for a completely natural look:
If it’s 100 percent natural plant-based henna color from Lush in red, brown, and black tones.
=natural henna hair colors..unfortunately not for blondes.
Imputs from Peta