In the hair world it is important to remember that all products are not created equal. Moreover, you may purchase products that may add sheen or make your tresses look healthy; however, the benefits might just end right there. Greasy hair products can add moisture, but they clog the pores on your scalp and can weigh locks down. Instead, it is best to use conditioners with essential oils, such as grape seed oil, that moisturize without leaving an oily residue.