Read honest … Shampooing is the beginning of your hair care regimen, so you want to make sure you start on the right foot. Biolage shampoo. If used improperly, purple shampoo can sometimes add lavender tones to light hair. The purple in this shampoo is acceptable on all hair colors, making it a good pick if your grays are just starting to grow in. Whether it’s blonde, brown, or gray. Biolage shampoos are available for each hair type, need, and color. Purple is opposite orange on the color wheel, so the purple color cancels out the brassy yellows and oranges in hair and brings the natural hair color back. Biolage uses soybean oil to hydrate hair … A. Will purple shampoo turn my hair purple? A purple-pigmented product, this shampoo helps remove yellow … If your hair does pick up some lavender tones, you can tone them down by washing with a clarifying shampoo. How do purple shampoos counteract the yellow in gray hair? Find helpful customer reviews and review ratings for BIOLAGE Colorlast Purple Shampoo Neutralizes Brassy & Yellow Tones Paraben-Free For Color Treated Hair,, 33.8 Ounce at Amazon.com. Avoid leaving purple shampoo on your hair for more than five minutes until you know how your hair reacts to it. all color can get brassy but not all hair colors react the same way to purple shampoos. Q. Price: $$$ While originally designed for blonde hair, the Blonde Ale Brightening Shampoo is also great for gray and white locks.