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A curling iron can be a bit intimidating if you've never used one before, or maybe you're just moving on up and trying out a larger curling iron for the first time. Don't worry about relying on a professional stylist to get big, beautiful curls, because you can do it yourself no problem. With a jumbo barrel curling iron, you get large, loose curls that are oh-so-lovely.
Spray some thermal heat protectant over your hair from the ends to the roots -- a cream works fine too -- and brush your hair to distribute the product evenly in your hair. This stuff is like gold for your hair when you're heat styling; it creates a protective layer on your hair so you can still get the curly style you want, but without the singed and split ends caused by the heat.
Heat your curling iron, but not at the highest temperature. Most curling irons offer a temperature setting. You know how your car has a top speed and you don't need to reach it? It's pretty much the same thing with your lovely curling iron.
Divide your hair into three even sections and clip the top two out of the way on top of your head, leaving the bottom layer down loose.
Pull out a section from one side of the loose hair, about the width of the barrel on the curling iron. Clip the curling iron on around the center of this section.
Start winding the curling iron around toward the back of your head, wrapping the hair around the barrel. Open the clamp on the curling iron up just a bit as you make each rotation, to take in a bit more hair every time. Keep going until the ends of the hair are the last to get curled, and keep the curling iron a few inches away from your scalp for a lovely, relaxed curl.
Curl the rest of your loose hair, taking up sections of the same size each time for even, natural looking curls.
Once you've curled all the hair on the bottom layer, let down half of the clipped hair and curl around it the same way. Do the same for the top layer.
Apply hair spray over your hair, pointing the bottle in an upward direction from the ends of your hair, scrunching up on the curls.
To help revive your big curls during the day, dampen your hair a bit and put it up in a loose bun on top of your head. Let it dry and then take your hair out, tousle it a bit with your fingers, and voila.