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 Long-Lasting Lifting and Toning: Our professional quality hair dye acts as a hair lightener providing a striking blonde shade with long-lasting color intensity For All Hair Textures & Curl Patterns: Curly, coily, textured, or straight, this formula cares for your unique hair type. It protects your natural texture while delivering even, vibrant color that doesn’t compromise your curls or your confidence Easy At-Home Application: Includes a pre-color serum, developer, color cream, anti-brass purple conditioner with K-bond plex technology, 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