Since the spiral perm is very time-consuming to do (it can take about two to five hours), it requires the most maintenance out of the bunch. However, results can last around six months.

The spiral perm is best for shoulder-length hair or longer. Dudley says this type of perm creates various-sized tight curls at different lengths by wrapping the hair vertically around rods.

Since the spiral perm is very time-consuming to do (it can take about two to five hours), it requires the most maintenance out of the bunch. However, results can last around six months. Dasha Burobina ...