Aloe vera gel comes from the leaves of the aloe vera plant. The plant is indigenous to tropical and subtropical locations and has been used medicinally for thousands of years, according to the University of Maryland Medical Center, or UMMC. It's most commonly used to treat burns and skin conditions due to its analgesic and anti-inflammatory effects and its ability to stimulate skin growth and repair, according to the UMMC. Aloe vera's regenerating abilities are also useful in hair care. Reduce oiliness Having an oily scalp can cause you to have greasy, limp hair and can even lead to uncomfortable and embarrassing problems such as dandruff. Using shampoo made with aloe vera, or mixing one part of your own shampoo with two parts aloe, can help regulate oil production, according to AloeSajten.com. The aloe vera helps maintain pH levels, cleans out pores and renews the hair growth cycle in the follicle, which promotes healthy hair growth, according to the Uses of Aloe Vera website. Prevent dandruff Dandruff, also known as seborrhic dermatitis, is a common skin disorder that presents under hair, according to Health911.com. The most typical form causes skin to be slightly red, itchy and flaky, but more severe forms can lead to bright red skin and painful flaking. Exact causes are unknown, but it has been related to yeast in the body, excessive oil production, stress, diet and blow-drying your hair, according to Health911.com. Aloe vera gel may provide some relief. By rubbing it into your scalp at night and shampooing it off in the morning, the vitamins and minerals may help moisturize and repair your skin. Prevent hair loss and stimulate hair growth Aloe vera contains a variety of the vitamins and minerals necessary for healthy, strong hair, including: vitamins A, B1, B2, B6, B12, C and E, according to Uses of Aloe Vera. Using aloe for hair care balances your pH levels, normalizes oil production and may help prevent hair loss by keeping your scalp healthy. Aloe also stimulates blood flow to the hair follicles, which might help stimulate hair growth, according to Uses of Aloe Vera.