Alterna The Science of Ten Perfect Blend Shampoo is a gentle sulfate-free cleanser. The ultimate in hair care for even the most discerning hair experts. A luxurious collection featuring the perfect blend of ten of the worlds most efficacious natural ingredients. This nutritionally super-charged line of fast-acting formulashelps take your hair to the height of perfection. See and feel the transformation. Perfect for women of all hair types who want extraordinary results. DIRECTIONS: Massage throughout wet hair and rinse thoroughly. For best results follow with Alterna TEN Perfect Blend Conditioner.