Tsister,
'Back 2 Natural' is a color blender/conditioner formulated specifically to hair systems. It revives the color of a system and also conditions the hair. It is an excellent product. It's available from adfhair.com. It was developed by Ian Gavet, the founder of ADF Hair Products, and he has years of experience with major hair products companies such as Clairol and several other firms. Check out adfhair.com---this is good stuff.
Regards,
John