Finasteride (brand name: Proscar) treats benign prostatic hyperplasia, a condition in which the prostate becomes abnormally enlarged. Information from the National Library of Medicine describes finasteride as a member of a group of drugs named for the enzyme they target, 5-alpha reductase.

Hair product buildup can be caused by too much hair product use or inadequate cleansing. The buildup prevents hair’s natural oils and nutrients from reaching hair strands, resulting in hair that is dull, greasy, limp or dry. Hair might also become difficult to style and your scalp can become itchy and flaky.

The "regrowth" stages of a hair transplant are quite similar to the stages of normal hair growth. This is largely due to the fact that the donor hair is taken from another location of your scalp and transplanted into the areas suffering from hair loss.

In addition to FDA-approved hair-loss treatments -- such as finasteride pills or the topical application of minoxidil -- you can turn to shampoos, conditioners and creams to help restore thinning hair.

Scalp pimples are a condition that can affect anyone, irrespective of their age. While bad scalp hygiene or excessive sebum production can be a cause of scalp pimples, they also occur after cosmetic hair transplant treatments as a result of inflammation in the hair follicles.

Excess body and facial hair, known as hirsutism, affects up to 10 percent of women in the United States, according to the Mayo Clinic. This condition results from the presence of too much of the male hormone testosterone, which produces coarse and dark-colored hair where men usually grow hair, such as on the face.

When dealing with bald spots on your head, one common option is to get a hair transplant. Hair transplants involve taking hair and scalp from one area of the head with an abundance of hair (such as the sides or back of the head), and transplanting it to an area that is bald or has very thin hair.

After shaving or waxing the arms, some people are interested in re-growing arm hair. Re-growing arm hair requires making lifestyle changes and ensuring you aren’t deficient in important supplements. The body requires vitamins, such as zinc, magnesium and vitamin B, for the hair growth cycle.

For many men, chest hair grows naturally and is seen as a sign of manliness. For others, chest hair can grow sporadically in location and excruciatingly slow in spurts. There are a wide variety of ways you can promote faster and healthier chest hair growth.

Keratin is a protein made by cells in your skin that make up your hair and nails. As keratin cells naturally push upward through the skin, they die and then harden, turning into your hair or nails.

Cells make up every part of your body, and they require many nutrients to grow and repair properly. While all the vitamins and minerals you eat contribute to healthy cells, certain ones play a larger role in cell functions, such as vitamin A, phosphorus and zinc.

In the quest for luxurious locks, many people spend hundreds of dollars on hair products and expensive treatments every year.