ColourPop Mars is a neutral-toned, dark fuchsia with a matte finish. It is a permanent lipstick that retails for $6.50 and contains 0.11 oz.
ColourPop Mars Ultra Matte Liquid Lipstick ($6.00 for 0.11 fl. oz.) is a brightened, medium-dark fuchsia-red with warm undertones and a very flat, matte finish. It had rich color coverage, and the texture wasn't too thin or too thick, so it applied smoothly and evenly without streaking. There is very subtle flaking initially that I don't even notice unless I'm looking for it, and a little color will rub off if you pat your lips with your fingertip, but after an hour, it seems to stop. On me, it lasted for ten hours with fading that began closer to the center of the mouth but wasn't too apparent as it left a stain as it faded, which camouflaged some of it breaking down over time. It was lightly drying after six hours of wear and was more noticeably drying after eight hours. MAC Moxie (LE, $16.00) is cooler. ColourPop Toucan (P, $5.00) is warmer, glossier. MAC All Fired Up (P, $16.00) is glossier. MAC Pleasure Bomb (LE, $16.00) is glossier. Kat Von D Berlin (P, $19.00) is lighter, warmer. Maybelline All Fired Up (P, $7.99) is warmer, glossier. ColourPop Cougar (LE, $5.00) is glossier. See comparison swatches / compare dupes side-by-side.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.