From gray to brown again

My mother would like me to dye her hair back to her natural color to take a way the grays.  Every time she tried, her hair turned red and stayed that way for a long time.  My first question is why did it turn red?  Second, what is a good dye to use?

This is a pic. that is close to her natural color:

http://gallery.hairboutique.com/detail.asp?Colors=4&Text ures=1&Lengths=255&btnSearch=Search&Genders=1&am p;SortBy=0&Styles=255&FaceShapes=255&ID=4585

Sorry, but my scanner is broken or else I'd have more actual photos.

Thanks for your help,

Char

ALL of her hair turned red.  She used Revlon colorsilk 40, 4a medium ash brown and it says 100% gray coverage.  Thanks for your help so far!  I really appreciate it.

-Char

chgurlsng wrote: Her hair has always been salt and peppery before she died it.  I will have to look at some different brands.  Unfortunatly, we don't have a Sally's but we have Beauty Co.  I have never looked at their coloring products before. -Char

You see, light hair when colored brown will prob always turn red so u need to use a protein filler on the hair in red which can bought at sally's and then use the ash brown over it, hope this helps.