Biolage Deep Treatment SmoothProof multi-use deep treatment hair mask for taming frizz, split ends & fly-aways for an overall sleek finish. Hair is instantly smoother with less breakage in just 5 minutes. Frizzy hair is controlled, feels softer and is more manageable. Softer Hair. Controls frizzy hair. Smooths hair. Protects against breakage. *Packaging may vary.