Hair is almost entirely made up of protein, which gives hair its strength. The paraben-free Fructis formulas with Active Fruit Protein, an exclusive combination of citrus protein, Vitamins B3 & B6, fruit & plant-derived extracts and strengthening conditioners, are designed for healthier, stronger hair. Fructis Sleek & Shine Shampoo with fairly & sustainably sourced Argan Oil from Morocco soaks into frizzy, dry hair to smooth each strand. Long lasting frizz control even in 97% humidity*. *With shampoo, conditioner & leave-in cream.