“With the fall of the Roman Empire, however, the beard once again prevailed, doing so for 1,000 years until the second half of the 17th century, when shaving became the vogue. The clean-shaven look continued through the 18th century. But then, by the mid-to-late 19th century, the pe...
The innovation prompted a “safety” race between English and French blade manufacturers. The French surged ahead in the late 18th century with the Perret razor, which had protective guards on three sides. The English responded with the T-shaped razor patented by William Henson in 1847. In 1875...
Boys become more “masculine” with an increase in testosterone levels, while the elevated estrogen levels make girls more “feminine”. Many studies have shown that the large amounts of testosterone in the body stimulate the fast and rapid growth of facial hair. As girls have more estrogen tha...