You can reactivate with just water--it just depends on how much of a touch up you need.
The real tip I wanted to get through was to not spray the hair, but to spray your hand before your touch up.
Originally Posted by mrfhnl
So you spray your hand and then scrunch that way? I'll have to try it. Thanks for the tips. I'm glad you ladies had fun.

SF Bay Area, CA * "The Angel-Goddess-Guru of Haircoloring"
3b/c/a mix. medium texture, low porosity
My Motto: Strand Test! some hair pics
-- gone, but never forgotten.