Le Color Gloss One Step In-Shower Toning Gloss - L'Oréal Paris
Refresh your hair color with Le Color Gloss hair gloss treatment by L'Oreal Paris. This in-shower toning gloss helps to remove brassiness and boost shine in just 1 step.

This stuff is bomb! I got it at Walgreen's for like $15. It's a conditioner you use like regular once a week or so that turns your gray into subtle highlights. Mine are now "honey blonde".
The reason I bought it was because I wanted something that sealed my hair's cuticle like coloring it does to boost shine and deep condition. The highlights are just a bonus. It made my hair really soft and 20 years younger.
Now watch, they'll stop making it....