"Hair density" means how thick or how thin of human hair wigs or synthetic wigs. Density of full lace wig and lace front wig tells the degree of thick and thin hair. the value of density higher,means the hair is thick,on the contrary,the lower density,the thiner the hair is. Density is showed by the number of hair on each square inch of the head or wig cap.medium density is 120% density in international standard,higher than 120 density is heavy density,180% density is the most thick density,lower than 120 percent density is light density.most women like 120% medium density when they wearing full lace wig or lace front wig.
Most suppliers or sellers offer denisty chart like above picture for your reference when they sell full lace wigs and front lace wigs or just synthetic wigs.
Measuring by yourself
A simple technique can be used to determine the difference between thick and thin hair in terms of measurement. If hair is long enough to be gathered into a ponytail, the circumference of the ponytail will indicate thickness. Thin hair has a circumference of 2 inches or less. Thick hair measures 4 or more inches around. Measurements in between are considered "medium density"
Another difference between thick and thin hair is the way the hair is affected by cut. Thick hair works best with a layered cut. Thin hair usually works best with a blunter cut, where all hairs fall at the same length. Thin hair usually takes well to curling and styles that add volume. Thick hair often looks best with straighter styles, as too much volume tends to be a problem for people with thick hair.
Color and Ethinicity
Though not a steadfast rule, color and ethnicity are two more differences between thick and thin hair. Thick hair is characteristic of blondes and brunettes. Thin hair is more characteristic of redheads. In terms of ethnicity, Caucasians tend to have thicker hair, whereas Far East Asians tend to have thin hair. Though color and ethnicity are interesting ways to classify hair types, Please choose your suitable density when you plan to buy a full lace wig or front lace wig.