Fenty Beauty Cuz I'm Black is a slightly warm-toned, dark black with a matte finish. It is a permanent eyeliner that retails for $22.00 and contains 0.01 oz.
Fenty Beauty Cuz I'm Black Flypencil Longwear Eyeliner ($22.00 for 0.01 oz.) is a deep black with neutral undertones and a matte finish. The consistency was a smidgen drier compared to most shades in the range, though it still glided across my skin with ease and never tugged on my lash line.
It had nearly opaque pigmentation in a single layer, which applied fairly evenly to my lash line in practice (hard to tell whether something is uneven when the line is so thin in person -- the close-up photo is magnified in comparison!). This shade wore well for seven hours on my lower water line and nine and a half hours on my lower lash line.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
Serving up hyper-pigmented color pops and neutrals, this eyeliner’s convenient twist-up tip glides across lids for lightweight, smudge-resistant lines. Its long-wear, water-resistant formula is smooth and creamy so you get enough playtime before it sets in place. No-limit lining just got brighter.
TRIMETHYLSILOXYSILICATE, DIMETHICONE, TRISILOXANE, POLYETHYLENE, MICA, SILICA, CERA MICROCRISTALLINA/MICROCRYSTALLINE WAX/CIRE MICROCRISTALLINE, PHENYLISOPROPYL DIMETHICONE, OCTYLDODECANOL, POLYHYDROXYSTEARIC ACID, DISTEARDIMONIUM HECTORITE, PROPYLENE CARBONATE, TOCOPHERYL ACETATE. MAY CONTAIN/PEUT CONTENIR (+/-): ULTRAMARINES (CI 77007), BLUE 1 LAKE (CI 42090), TITANIUM DIOXIDE (CI 77891), IRON OXIDES (CI 77492, 77499).
Disclaimer: Ingredient lists are as available by the brand (or retailer) at the time of publishing. Please always check product packaging, if it exists, for the ingredient list applicable to the product you're purchasing, or the brand or retailer's website for the most up-to-date ingredient list.