Start with hair you washed the day before for the best holding spiral curls. Your hair needs to be dry.
Comb through your hair completely to remove every tangle.
Separate your hair into three sections to make it easier to curl small pieces of hair. Part your hair down the center and make a top right and top left section using all the hair on the top of your head. Clip these sections back with clips. Leave the bottom hair down.
Separate a 1-inch section of hair from the bottom section and comb it smooth with the comb. Hold the curling iron so it is vertical against your head and open the clamp of the curling iron. Position the curling iron about 1 inch away from the roots of this section and clamp the curling iron over the hair.
Rotate the curling iron to wrap the hair closest to your scalp around it. You'll only be able to rotate the curling iron a small amount right now --- you're curling the hair closest to your scalp first. Keep the curling iron right here for a couple of seconds.
Open the clasp of the curling iron just a smidge and pull the curling iron along the section of hair an inch or two. Clasp the curling iron tight again and rotate it around your hair to continue wrapping. Keep the curling iron right here for a couple more seconds.
Continue unclasping the curling iron, moving it down the hair, reclasping and holding it until you reach the ends of the hair section.
Open the curling iron gently and release the entire section of hair. You should have a spiral curl.
Repeat the same technique with 1-inch sections of hair in the bottom portion of your hair. Unclip the two top sections of hair and repeat the same curling technique.
Leave the spiral curls completely alone after you finish curling them. Combing, brushing or even finger-combing will ruin them. Spray them lightly with hair spray to set the curls.