72 Hr Humidity Protection**with system useInfused with keratin drops and our Frizz Immunity Complex, this shampoo gently cleanses and fights frizz at its source, while helping to gradually build hair's immunity against frizz with each use. The result is sleek, glossy styles that last. From the first use, our collection builds a powerful defense against humidity that lasts up to 72 hours, helping to prevent frizz from ruining your style.Tame unruly frizz for long lasting sleekness, For Frizzy, Medium to Coarse Hair with Keratin Drops