Tea Tree Oil For Human Uses

Tea tree oil is derived by steam distillation from the leaves of the Australian plant Melaleuca alternifolia. This essential oil has antimicrobial properties, which can prevent or slow the growth of bacteria, according to the Mayo Clinic. Tea tree oil has been used to prevent and treat conditions such as acne, dandruff and head lice. It has even been touted as an effective oral antiseptic.

Acne

Tea tree oil is listed as a natural acne treatment by the American Academy of Dermatology. It might be helpful for acne patients who have sensitive skin, according to the academy. According to the National Institutes of Health, however, human studies on tea tree oil to improve acne have been limited. It might cause minor irritation when applied topically.

Dental Plaque & Gingivitis

Tea tree oil helps fight inflammation of the gums, called gingivitis. An Australian study involving 49 adult male and female participants with chronic gingivitis found that when tea tree oil was applied topically in gel form, it helped fight gum disease when used in conjunction with chemotherapeutic agents. The findings of the study were published in the June 2004 edition of the Australian Dental Journal. The therapeutic value of tea tree oil in mouth rinses remains inconclusive, according to the NIH. In addition, the Mayo Clinic warns that tea tree oil should not be used orally because it could be toxic.

Head Lice

Some studies have found that tea tree oil is effective as a stand alone treatment for head lice or when used in combination with other treatments, according to the NIH. Australian researchers found tea tree oil to be somewhat effective in repelling the transfer of head lice to treated hairs. The findings were published in the April 2007 edition of the International Journal of Dermatology.

Seborrheic Dermatitis

Tea tree oil is mentioned as a treatment for seborrheic dermatitis by the American Academy of Family Physicians. This common skin condition primarily affects the scalp and causes dandruff. Seborrheic dermatitis can also develop in the ears, armpits and groin, according to the Mayo Clinic.

Vaginitis

Creams that contain tea tree oil might help treat symptoms of vaginitis, according to the University of Maryland Medical Center. Vaginitis is a common condition in women that is caused by a yeast-like fungus called candida. Vaginitis is often referred to as a yeast inflection. Its symptoms include vaginal itching and discharge.