Biolage SmoothProof Shampoo is the perfect shampoo for beating the humidity and removing unwanted frizz from hair. Formulated with nature’s water-resistant camellia, this smoothing shampoo makes frizzy and damaged hair more manageable and easier to style. This Biolage shampoo encapsulates hair in a protective shield and tames even the most stubborn frizz while gently cleansing. Paraben-free formula and suitable for color-treated hair, the results speak for themselves as the shampoo smoothes hair in 97% humidity for up to 72 hours.