Oz/ea Redken's Nature + Science Extreme Fortifying Shampoo & Conditioner is ideal for distressed, damaged hair and is formulated with naturally derived ingredients including lupine protein to fortify and strengthen your hair. Redken's innovative Nature + Science line uses high performance ingredients, naturally sourced from nature, to deliver amazing results with a clean feel. Vegan, Sulfate free, Silicone free, and Paraben free. Fortifying shampoo for distressed, damaged hair -Strengthens and repairs hair, Infused with high levels of protein, such as lupine protein, to strengthen hair. Moisturizes and conditions to help prevent split ends.