Truly amazing Cell Youth Actif Serum!
Cooler color charts have a blue base undertone) a cool gray has a blued base (undertone) rather than a pewter warm cast.
Cool Browns have cocoa or rose understones and are hard to find. Cool colors contain no orange, gold or bronze.
Cool Reds, Yellows, Greens, Violets contain blue rather than orangey or golden tones.