Hair is almost entirely made up of protein, which gives hair its strength. ALL NEW, 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. Daily Fructis Grow Strong Strength Activator serum, with Apple Extract and Ceramide, renews hair's natural strength & improves softness and shine, with visibly more healthy unbroken strands.