Schwarzkopf Keratin Blonde vs. Lasting Protection: Showdown! We were intrigued to try Schwarzkopf Keratin Blonde 11.4 Hi-Lift Permanent Color, promising both a vibrant lightening boost and keratin-infused protection. The formula lived up to its promise, lifting our hair up to four levels with ease while keeping strands smooth and resilient. The tingling pearl blonde hue turned out Brittle yet brilliant, as our hair felt stronger post-application, not prone to breakage. We appreciate the dual-action formula that combines lightening power with nourishing benefits, making our transition to brighter blonde strands both seamless and safe. While our results were satisfying, we’ll continue monitoring long-term durability. Overall, the product strikes a impressive balance between style and health—proof that brightness and protection can coexist in harmony.