OSiS+ Goodbye Yellow Shampoo

This gentle anti-yellow wash is specifically developed to target and neutralize unwanted warm and yellow undertones in blonde, pre-lightened, and highlighted hair. It helps restore a more refined and balanced tone, making it ideal for maintaining cool, salon-fresh blonde results between coloring services.

Formulated with a carefully calibrated blend of purple and blue direct dyes, it works by counteracting brassiness at the surface level while improving overall tonal clarity and brightness. This dual-action pigment system helps refine the appearance of blonde shades, enhancing their coolness and visual purity.

While it delivers effective toning performance, the wash also provides a soft cleansing action that respects the integrity of the hair fiber. It lifts away impurities gently without stripping moisture, leaving the hair feeling clean, smooth, and refreshed after each use.