Christina Aguilera By Night Shower Gel gently cleanses and fragrances the skin. Christina Aguilera By Night is a radiant pefume that is seductive with an exciting twist that empowers the wearer. Christina Aguilera By Night begins with tangerine, freesia, rhubarb, red apple and pineapple, over a rich heart of may blossom, peach tree flower, pineapple and heliotrope and a sensual base of sandalwood, amber, moss and vanilla.