For frizzy hair. No parabens. Same great formula. Biomatch: Like nature's water-resistant camellia, SmoothProof provides humidity control and anti-frizz smoothness even in 97% humidity (When using the system of shampoo, conditioner and serum). SmoothProof Conditioner detangles and de-frizzes, defends against humidity to keep hair manageably smooth. Suitable for color-treated hair. www.matrix.com. Made in USA.