Does De-Brassing Shampoo provide protection from further brassiness and yellowing with repeated use?

Yes, ColorKick®️ De-Brassing Shampoo incorporates UV/solar protection derived from a combination of Rice Protein, Tara Tree plant, Sunflower Sprout Extract, and a specialty Quinoa Protein. This protects all color-treated, highlighted, and natural silver and blonde hair from color fading, brassiness, yellowing, and the color-distorting effects of UV/solar exposure. The formula also includes a complex of anti-pollution protection, since pollutants and environmental free radicals play a role in brassiness and yellowing.