Professional-Quality Blonde Hair Color: This permanent formula helps lighten hair to achieve a brilliant blonde right at home. This keratin enriched hair color lifts up to 4 levels and tones for a healthy-looking blonde Strengthens and Softens: Our 3-step Bond Enforcing System helps strengthen hair, making it 5x more resistant to breakage*. Plus, the included pre-color serum is infused with Vitamin B6 and collagen that help protect and prep for softer hair Complete Gray Coverage: Designed to cover grays in one step, this professional-quality formula offers even-toned color with long-lasting color intensity. A great choice if you’re looking to soften the appearance of grays without sacrificing color payoff Deep Nourishing Effect: The conditioner, infused with K-Bond Plex technology, helps repair the inner hair structure, making hair look renewed & strong with striking color. It also helps maintain curl pattern and natural texture Easy At-Home Application: Includes a pre-color serum, developer, color cream, post-color anti-brass purple conditioner, and disposable gloves for clean application. For hair longer than shoulder length, use two boxes for full, even coverage *Against combing breakage on damaged hair vs. a non-conditioning shampoo