{"product_id":"redken-extreme-length-leave-in-treatment-with-biotin-for-hair-growth-split-end-prevention","title":"Redken Extreme Length Leave-In Treatment with Biotin for Hair Growth \u0026 Split End Prevention","description":"\u003ch2\u003eGrow Longer, Stronger Hair with Redken Extreme Length Leave-In\u003c\/h2\u003e\n\u003cp\u003eThis biotin-infused leave-in conditioner is designed for damaged and weak hair that’s ready to grow beyond its current length. Built on Redken's Length Care Complex, the formula blends Biotin and Soy Protein to help fortify the hair shaft, supporting longer, more resilient strands over time.\u003c\/p\u003e\n\u003cp\u003eApplied daily as a lightweight leave-in, it smooths the cuticle, reduces friction during brushing, and leaves hair feeling more manageable with each use. When used as part of the complete Extreme Length regimen (shampoo, conditioner, and leave-in), many users report noticeable improvements in breakage and the appearance of split ends—without sacrificing softness or shine.\u003c\/p\u003e\n\u003cp\u003eIn testing, the full Extreme Length system achieved meaningful results: up to 81% less breakage and up to 78% fewer visible split ends, compared with baseline conditions. This indicates the potential for longer, healthier-looking hair when the system is used together as intended.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStrengthens damaged hair with Biotin and Soy Protein\u003c\/li\u003e\n  \u003cli\u003eSupports smoother, more manageable strands with reduced friction\u003c\/li\u003e\n  \u003cli\u003eMay help reduce breakage and visible split ends when paired with the full Extreme Length system\u003c\/li\u003e\n  \u003cli\u003eLeaves hair feeling glossy, hydrated, and resilient\u003c\/li\u003e\n  \u003cli\u003eDesigned to work from root to tip for improved overall hair health\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApply a small amount to towel-dried lengths and ends, avoiding heavy roots\u003c\/li\u003e\n  \u003cli\u003eDistribute evenly with a wide-tooth comb or fingers\u003c\/li\u003e\n  \u003cli\u003eDo not rinse; style as usual for daily protection and manageability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Redken Extreme Length\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFormulated with Redken’s Length Care Complex, featuring Biotin and Soy Protein\u003c\/li\u003e\n  \u003cli\u003eLeaves hair feeling smoother, shinier, and more resilient against styling stress\u003c\/li\u003e\n  \u003cli\u003ePairs with the full Extreme Length system for the best-longer-hair potential\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the key benefits of Redken Extreme Length Leave-In?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Strengthens damaged hair with biotin and soy protein; helps reduce breakage and split ends; supports smoother, shinier strands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the Extreme Length system for best results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, using the full system (shampoo, conditioner, leave-in) may reduce breakage and visible split ends while promoting manageable, glossy hair.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Redken","offers":[{"title":"Default Title","offer_id":42597923094599,"sku":"B086L3RLVM","price":49.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/2537\/2231\/files\/redken-extreme-length-leave-in-bottle.jpg?v=1773276087","url":"https:\/\/celaurabeauty.com\/products\/redken-extreme-length-leave-in-treatment-with-biotin-for-hair-growth-split-end-prevention","provider":"Celaura Beauty | Premium Beauty, Skincare \u0026 Self-Care Essentials USA","version":"1.0","type":"link"}