The best purple shampoos, according to our testers, include Amika, Kristen Ess, and IGK, and Nexxus. Our picks range in price ...

After Nicole Kidman debuted a dramatic short hair transformation at the 2025 Met Gala, the actress brought back her signature longer strands for a red carpet date night with Urban ...

An elixir of vitamins, lipids, and peptides powers Augustinus Bader’s The Hair Oil, which boosts thickness ... But exactly how long does it take to see noticeable results? Our InStyle team ...

Before using a purple shampoo, wash your hair with a clarifying shampoo. This will help remove any existing product buildup, which could prevent the purple shampoo from properly absorbing.

Before using a purple shampoo, wash your hair with a clarifying shampoo. This will help remove any existing product buildup, which could prevent the purple shampoo from properly absorbing. If you’re ...