The Goldwell Dualsenses Blondes & Highlights Holiday Pack is a three-piece anti-yellow hair care set — a 10.1 fl oz shampoo, 10.1 fl oz conditioner, and 6.7 fl oz 60-second treatment — from Goldwell's professional Dualsenses line, built to neutralize brassy, yellow tones in blonde, highlighted, or gray-toned hair between salon visits.
All three products use a violet-pigmented toning system alongside Goldwell's Luminescine, an ingredient the brand says converts UV light absorbed by the hair into visible light, which is Goldwell's stated reason for the added brightness rather than just reduced yellowing. A FadeStop formula and UV filters are aimed at slowing color fade from washing and sun exposure.
The shampoo and conditioner are meant for every wash; the 60-second treatment is a weekly deep-conditioning step included in the set rather than sold on its own, giving a fuller toning-and-conditioning routine in one purchase. As a toning system rather than a lightener, it maintains existing cool tone instead of correcting brassiness that has already set in, and like most violet shampoos it can leave a slight tint if left on longer than a normal rinse.