You can't control the weather, but with Biolage SmoothProof Conditioner you can control your hair. This anti-frizz conditioner is the salon hair treatment solution for managing wavy, curly and frizzy hair in humid weather. Reflecting elements of nature’s water-resistant camellia, this conditioner provides humidity control and anti-frizz smoothness even in 97% humidity, giving you perfectly smooth hair for up to 72 hours.*How to Use: After cleansing with SmoothProof shampoo, apply to wet hair and leave in 1-3 minutes. Rinse thoroughly.