MAC Oh Lady Retro Matte Liquid Lipcolour ($21.00 for 0.17 fl. oz.) is a deep berry with cool undertones and a matte finish. It had semi-opaque color payoff with a thin consistency that spread fairly well across the lips and did not appear streaky or uneven as it dried down. I found that the color did dry deeper in my lip lines, so not only did it appear a little "cracked" after the dry down, it emphasized my lines further by making them darker. This shade lasted for eight hours but was drying over time.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.