The best eyebrow arch is one that will suit your facial shape. Oval faces look best with a soft angled eyebrow, whereas long faces can be shortened with flat eyebrow arches. If you have a round face you can choose a very arched brow, but you could also use the soft angled brow arch. A square face shape looks best with a curved eyebrow arch, and if you have a very square jaw line, you may need thicker or stronger brows. Eyebrow arches can also be changed slightly to make the eyes appear farther apart or closer together.
The oval face shape is considered by some to be the perfect shape, as it is balanced and the features are proportional. If you have an oval face, you won't need to balance the face with a special eyebrow arch. Softly arched eyebrows that create moderate height should work well with this face shape.
If you have a long face, your forehead is likely to be quite long, and this can add to the appearance of "lengthiness," so you should avoid an eyebrow arch that adds height to the face. A flat eyebrow arch is best to help create the illusion of a shorter forehead. This arch creates flat lines that draw a viewer's eye horizontally, away from the length of the face.
Round face shapes look best with very arched brows — the higher the arch, the better. The goal is to create the illusion of length. Avoid round eyebrow arches, as this adds to the roundness of the face. Angular arches are best, but you can use a softly angled eyebrow if you want less of an arch.
For a square face, there are two options. The first is to soften the angularity of the features by using curved eyebrows. Arches that curve in slightly at the ends soften angular lines. The other option is to create strong, or heavy, brows to help balance the jaw line.
If your eyes are set close together and you would like to create the illusion of more space between the eyes, you should shape your brows so that the brow curves inwardly towards the inner corner of your eye. Using this technique will help create the illusion of eyes that are set a little farther apart.
For eyes that are wide-set, you should extend the eyebrows inward a bit. It may mean using a little eye shadow or a brow pencil to create the illusion that your eyebrows are closer together. You should do this only in moderation, as eyebrows that are too close together could give you a "uni-brow" or may make it seem like you're constantly frowning.
