Achieve your long hair goals with Redken's professional long hair conditioners, scientifically formulated to nourish, protect, and promote healthy growth. If you're asking "what is the best conditioner for long hair" or seeking specialized treatments to help you maintain your length, our advanced collection delivers salon-proven results. Extreme Length Conditioner, fortified with biotin, a key ingredient known to support hair growth and strength, targets breakage and split ends, allowing you to grow your hair longer and stronger with reduced damage. This specialized formula utilizes our exclusive Length Care Complex, including biotin, to strengthen the hair fiber from root to tip, promoting healthy growth and preventing breakage for longer, more resilient hair. What sets Redken's long hair conditioners apart is our comprehensive approach to length retention – whether you're battling breakage, split ends, or dryness – all powered by our professional-grade formulations. Each conditioning treatment is precisely engineered with concentrated ingredients, including the power of biotin, that work to nourish, detangle, and protect long hair, promoting healthy growth and reducing damage for hair that is longer, stronger, and more beautiful. Our long hair technology targets breakage and split ends at their source, delivering essential proteins and moisturizing agents for long-lasting, healthy results. Ready to achieve your ultimate long hair goals? Take the Redken Hair Quiz to discover the ideal long hair conditioning solution for your specific hair type and concerns. Plus, maximize your length retention results and savings by bundling your favorite products together – enjoy 10% off when creating your complete hair care system.