(TrendHunter.com) Lip oils are beloved for combining the high-shine finish of a gloss with the lasting comfort of a balm, and MAC Cosmetics’ Sugar Crystal Lip Oil Stick offers a convenient, mess-free formula. This…(TrendHunter.com) Lip oils are beloved for combining the high-shine finish of a gloss with the lasting comfort of a balm, and MAC Cosmetics’ Sugar Crystal Lip Oil Stick offers a convenient, mess-free formula. This…