Kat Reynolds stops by the beauty products store about as often as some people shop for groceries — about three times a month. For many women, shampoos, conditioners, extensions and weaves seem to hold the key not only to an improved appearance but also a kind of self-satisfaction, according to Reynolds. With that in mind, the photographer is curating an art exhibition, “Mane ‘n Tail,” named for a popular line of beauty products. Reynolds said the show, which opens Jan. 19, focuses on female attractiveness and African-American culture, including money and self-determination.