Hair was very important to the Tudors. In the early Tudor times, hair was covered by head dresses but during the Elizabethan era, ruffs were in fashion and so there were smaller, more delicate hair accessories.
All through the Tudor era, hair was kept long and some women, such as Catherine of Aragon and Anne Boleyn could sit on it! Hair was mostly kept under a head dress or a hood to keep it out of their faces. However, on some occasions, such as the coronation of Anne, it was let loose. Long hair was a sign of the virgin and most brides had it loose on their wedding day.
One way of keeping hair away from your face was to put it up in a bun so hair accessories could be pinned onto it.
Early on, many women had straight hair but during the reign of Elizabeth I, hair was usually frizzy. To make it that way you would use hot tongs. If the queen had her hair in a particular way, everyone else would do their hair the same way.
Tudor men kept their hair and beards short, especially during Elizabethan times, as that style suited the ruffs.
During Tudor times, the ideal women would have fair hair, pale skin, and bright red cheeks and lips. To achive this image, blonde hair dye was made from saffron, cumin, celandine and oil.
Many Tudors would wear wigs and/or hair pieces. Elizabeth I had lots of hair pieces, which were called Periwigs.

I got this information from http://www.the-tudors.org.uk/tudor-hair.htm.