Redken's Extreme Length Shampoo, formulated with biotin, is designed to strengthen and fortify damaged hair, reducing breakage to promote healthier, stronger hair and help clients achieve their ultimate hair length goals. With the knowledge that healthy hair can grow up to 3-6 inches in a year, Extreme Length works to support hair growth and reduce damage along the way.

Key benefits of the Extreme Length System include:

• Supports up to 6 inches of hair growth in one year, helping clients reach their maximum length potential.
• Strengthens and fortifies hair, reducing breakage by 81% when used with the Extreme Length Conditioner (compared to a non-conditioning shampoo).
• Promotes healthy, strong hair from root to tip, leaving hair feeling revitalised and resilient.
• Prevents split ends and reduces their appearance by 78%, when used as part of the full Extreme Length Shampoo and Conditioner system (compared to a non-conditioning shampoo).

Ideal for those aiming to grow longer, healthier hair, this shampoo nourishes and strengthens while protecting against breakage and split ends. Use with the Extreme Length Conditioner for best results and visibly stronger, longer hair.