As a person with type 4 curly hair , frizz is basically my number one enemy, and more often than not, my haircare routine requires more than just a simple leave-in conditione r or curl cream to get my curls in their best shape. That's where curl gels come in. These are gel formulas (some of them are even non-sticky) that not only give my hair so much more definition than a cream can provide, but they're also capable of blocking out frizz . "If you’re looking for your curls to last two to four days, gels are one of the best ways to give your curls definition, shine, and longevity," says celebrity hairstylist Cassandra Normil . "Gel does this by creating a cast over your curls to lock in the shape and moisture while minimizing frizz as the hair dries." There's a method to applying curl gels though. Usually it's best if you apply them to clean curls, and they work best when applied in between other hair products . "Curl gels are usually applied after cream or foam to lock all of the products in," Normil adds.…