MAC Sudsy is a very cool-toned, dark blue with a pearl finish. It is a limited edition eyeliner that retails for $17.00 and contains 0.012 oz.
MAC Sudsy Technakohl Liner ($17.50 for 0.012 oz.) is described as a "marine blue." It's a blackened navy blue with lighter navy blue pearl that brightens the overall color. It had semi-sheer color payoff in one stroke, and it was fairly buildable and managed to get to mostly opaque coverage with two to three layers. The texture is a little thin and dry, so it can take some layering to get even coverage as well. Applied, it lasted for eight hours on me. See comparison swatches / compare dupes side-by-side.
The liner’s enduring formula features a unique combination of plant-derived waxes, providing a soft, comfortable feel, while staying smudge-resistant for up to eight hours. Whatever your style, get ready to line it up.