Pantene Pro-V Long & Strong Conditioner strengthens hair and reduces breakage, for fragile hair prone to breakage. Use for stronger hair down to the last CM. Pantene Pro-Vitamin Long & Strong Shampoo is a shampoo that helps to strengthen hair and reduce breakage. The shampoo is formulated with the Pantene SMART Pro-Vitamin Formula, which reads and responds to different levels of damage, so the ends of the hair are as healthy and strong as the roots. The formula also targets damage to repair and restore hair from the core.