Stylists at True Colors Hair Salon add shape and tint to washed-out tresses with products from GKhair, Paul Mitchell, and L'Oréal Paris. After conferring with clients to determine hair dos and don'ts, mane managers snip strands into face-flattering angles, voluminous layers, or imposing Greek columns. Hair-gloss treatments add shine to hirsute halos, and partial or full sets of highlights set indigenous hues aglow. For complete head makeovers, double-process color lightens dark locks several shades without brassiness. Frizz-prone clients may opt to cosset curls with a GKhair treatment's special blend of proteins, called Juvexin, which penetrates the cuticle to tame flyaways and rabid sun visors for up to five months.