The 2.25 rule states that, if the measurement is less than 2.25 inches, your face would suit a short hairstyle like a youthful bob. If the measurement is more than 2.25 inches, your facial structure is less likely to suit short hair and you should sitck with longer locks.
An asymmetrical long bob, or lob, is the absolute best hairstyle if you want to make your face look thinner. Opt for a lob at least three inches below the chin in the front, and angled shorter in the back.
Long Face: The longer your hair is, the longer it will make your face look. It's often best to go with shorter styles or those that have plenty of volume. Bangs are great as well.
Straight to the point, the answer is yes, long hair can complement just about any face shape. It just depends on what kind of cut/style works best for you.
Experts believe that the reason long hair is more attractive is the evolutionary one. In short, it is believed that the length of a woman's hair represents her body's ability to have children. In turn, this makes female fertility one of the markers of human beauty.
We call it the 2.25 rule. Practically fool proof, this rule states that if the longest part of your chin is less than 2.25 inches from the tip of your earlobe, then short hairstyles are for you.
This is not always true because sometimes people with long hair can look even skinnier than those with short hair. The reason for this is because the weight of long hair can make your head and neck appear smaller in comparison to those who have short hair.
You probably even notice your hair is longer when it's wet—that's because essentially wet hair is already stretched out to it's maximum length. What happens is the microscopic pores in your hair shafts open up when exposed to moisture. As these pores open, water is absorbed into the hair swelling it until saturated.
Your face shape decides whether a hairstyle suits you or not. If you have an oval face shape then most hairstyles will suit you. But if you have a round, heart-shaped, or rectangular face shape, you will have to be more careful with the hairstyles you choose.
It is believed that short hair isn't suitable for women with round faces. However, that's not true. The key to success is to not add volume to the sides. The perfect ones will be cuts with choppy strands framing the face, asymmetric side-parted hairstyles, angled bobs/lobs, and styles with volume on top of the head.
Bluntly cut bangs shorten the appearance of your face, making it look wider than it truly is. They also highlight the fullness of your face, making the roundness of the cheeks and chin more apparent.
“With round face shapes, you need to create interest and angles in the haircut to elongate the face,” says Dom Seeley Color Wow's international creative director. “Longer lengths are more suited to this face shape for that reason too, and it's always better to style it in soft waves, adding body and volume.
Like I said, the results are subtle, but pulling your hair up does make your face look instantly thinner and sharper, especially from the profile. Bottom line: If you're not feeling so hot, pull your hair up in a high pony and watch your confidence skyrocket, Ariana Grande-style.
Loose waves are more younger-looking, while straight hair can be aging. Play around with face-framing layers to give your hair some softness and movement. Layers can also make your hair appear to be more luscious and healthy. Parra recommends asking your stylist for perimeter layers that are cut in a straight line.
Straight hair makes your head look smaller, which widens your face. Tricomi also advises to stay away from tight curls: “You want long, loose waves that are curled away from the face but still frame your face.” The brighter color draws vertical attention to your face and makes it look slimmer.
"Everyone can pull off a chin-length cut, but I would use caution if you have a very round face," he warns. "It's not always the most flattering style." Regardless, if you're thinking of going short, "have a thorough consultation with your stylist…
Short hair can be slimming as well, as long as you have tons of texture and fullness, which make your face look smaller in proportion.
#1 Consider Your Face Shape
The best haircuts for you are are those that are not too short - hair that ends at least a few inches below your chin. For those with a square or rectangular face shape, a short haircut may not be the best look for you as it tends to emphasise angular features.
Measure from the center of your hairline to the tip of your chin. Next, measure from the left side of your face to the right side. If your face is longer than it is wide, you may have an oval face shape. If your face is wider than it is long, you may have a round or heart face shape.
One of the most popular hair chart length options is definitely the shoulder length (12 inch). The main reason why so many women prefer the type is that it borrows the best features from the medium and long mane. Thus, any look you opt for will turn out to be trendy and chic.
CNN recently shared research that men are most likely to prefer women with long hair past the shoulders. Guys were asked to rate the same women's faces based upon short, medium-length, plus super long locks. Males rated ladies with longer hair as more attractive.