Biolage Smooththerapie smoothes unruly, frizzy, medium to coarse hair with silky serum of Camellia. Serum-infused technology deeply moisturizes and helps control frizz through all seasons-even in 97% humidity. Deep Smoothing Shampoo cleanses as it helps control frizz with lightweight nourishment for polished shine, smoothness and manageablity. Cares for Color-Treated Hair.