Oval - Many choices
As its name implies, the oval-shaped Face is longer than wide, with a jaw that is narrower than the cheekbones. Because the oval shaped face has no dominant areas and is so proportional, this face looks good with just about any hairstyle, length or texture,
Round - Avoid width
The round-shaped face has a wide hairline and fullness below the cheekbones. The client may be overweight and the neck may appear short. A geometric or linear style looks very good. Add height and long wispy sides to make the cheeks look narrow. Sides and nape comb close.
Diamond - Reduce width at sides
The diamond-shaped face has a narrow chin and forehead with wide cheekbones. Diamond shaped faces need narrow sides and fullness at the chin. Bobs work very well. Avoid height on top or volume on the sides. Use some fringe or bangs to cover narrow forehead.
Heart - Add volume at chin
The heart-shaped face is characterized by a wider forehead and a narrower chin. Bring some hair onto the forehead to disguise its width. Keep hair close to the head at the eyes but make it slightly full around the jaw, and below and in front of the earlobes.
Pear - Add volume above jaw line
The pear-shaped face is characterized by a small or narrow forehead and a rather large pouchy-appearing jaw line. Comb hair to add width from the eye level through the crown of the head. Set and comb hair close to the head on the sites and at the nape.
Oblong - Add softness
The oblong-shaped face has a long and narrow bone structure. An oblong facial shape often has a long, thin neck. Use a fringe or half-bang across the forehead by creating the soft waves or curls in the crown or nape areas. This helps to create the illusion of an oval.