Your hair texture. Layering tends to add body to hair, especially when some of the layers are short in length. If your hair is already full-bodied or curly, you may want to go for longer layers that don’t differ much to frame your face. Your face shape. Think about what layer length is right for the shape of your face. Longer layers look gorgeous with round or square faces, while shorter layers accent faces that are oval or heart-shaped. Your style preferences. If you’re trying to emulate the look of a certain celebrity or popular hairstyle, figure out how to make it work with your hair. Decide where the layers should fall, how your hair will be parted, and how you’ll style it in the end.

Make sure your parts are straight and even. Make a “top box section. " Use the comb to create two parts: on on the left side of your head, and one on the right. The top box is the section of hair between the two layers. Divide the top box into two parts: the first part extends from the crown of your head to your forehead, and the second part extends from the crown of your head to the nape of your neck. Use hair clips to keep the sections in place. Make right and left front sections. The two front sections start at your temples and end at the top of your ears. Comb the right and left front sections out and hold them up with clips. Leave the back sections loose. You won’t be cutting the longest part of your hair, so leave it down as a guide against which to measure the other layers.

The ninety-degree angle extends the hair straight out from the head, producing a uniformly layered haircut. It’s common to cut the shortest layer just below the earlobe, or right at the jawline. Use the picture you took of yourself as a reference. Alternatively, for longer hair, cut the shortest layer right at the shoulders. Err on the side of making the layer longer, rather than shorter, than you want it to be. When your hair dries, it will shrink up a little. You can always cut more if you need to.

Trim at an angle, rather than in a horizontal line, for softer-looking layers.

The ponytail should be on the top of your scalp, not the crown of your head. This ensures the layers will be positioned correctly. Make sure it isn’t cocked to one side, since this could result in uneven layers.

Alternatively, slide your fingers down instead of the elastic. This method may be more beneficial to those with longer hair.

If you have thick hair, it may take more than one snip to get through all of the layers. Make sure you cut them all in the exact same place. Don’t cut at an angle, or the layers will look jagged. Make sure you hold the scissors horizontally and cut straight across.