Anagen is the growth phase. This lasts for about 3 - 5 years, where you can observe your hair growing half an inch every month. Full-length hair from this phase is about 18 - 30 inches long. Studies show that this phase may also be affected by other factors. Asian hair, for example, has been found to have a longer anagen phase. Weather is also a factor; hair growth can be faster in summer than in winter.
We've heard it all before: clients waking up one day in shock after discovering a coin-sized bald spot on their heads; women agonizing over the strands of hair they see on the shower floor; men looking for topical creams and shampoos to prevent the early onset of balding. Even more are tales of men and women on the search for the perfect wig or toupee to cover up the loss of their hair as a result of medication for a chronic illness.
Scientists from the Indiana University School of Medicine have for the first time created skin with hair follicles using mice stem cells. Research was led by Professor Karl Koehler. The team was able to grow both the epidermis and dermis layers of skin to create a realistic skin model. An interesting quote from Professor Koehler: “It looks like a little ball of pocket lint that floats around in the culture medium. The skin develops as a spherical cyst and then the hair follicles grow outward in all directions – like dandelion seeds.”