Which styling technique is most effective for creating curls in hair?

The most effective technique for creating curls in hair is utilizing permanents. This method involves a chemical process that alters the structure of the hair, making it possible to form long-lasting curls and waves. During a permanent wave process, the hair is wrapped around rods and treated with a solution that breaks the disulfide bonds in the hair. When these bonds are reformed in the shape of the curl, the result is a semi-permanent curl that can last for several weeks to months, depending on hair care and the individual's hair type.

While blow drying can also create curls, especially when using a round brush technique, those curls tend to be temporary and may not maintain their shape for long without additional products or heat styling. Flat ironing typically serves the opposite purpose, as it is designed to straighten hair. Roller setting is a viable technique to add curls, particularly for temporary styles, but it often requires more time and is not as enduring as a permanent wave, making it less effective for long-lasting curls. Thus, for someone seeking long-term results, permanents stand out as the most effective method for achieving curls.