The world's first solid purple shampoo bar with Biotin! Safe for blondes, grey & white hair: color-treated, highlighted, & natural. Neutralizes unwanted brassiness and yellow undertones. Enriched with Biotin to boost shine, reduce dullness & strengthen your hair Enjoy smoother, stronger & more vibrant blonde hair after just one use! Free of parabens, phthalates, silicones, sulfates, & artificial fragrance Reduces single-use plastic: saves two bottles of liquid shampoo/conditioner Made in the USA with quality ingredients *Natural fragrance derived from plants. *. Free of parabens, phthalates, silicones, sulfates, & artificial fragrance Fragrance: Orange Blossom & Jasmine Leaping Bunny certified! How to neutralize unwanted brassiness: Post-shampoo, wet bar & "paint" on from lengths to ends for even toning. Finger-comb hair to detangle; let sit for 1-3 minutes for desired toning intensity. Rinse, repeat or use as a leave-in conditioner. Pro tip: Pair with our Beauty Bar Bag.