Cover FX
Sure, this concealer is great for masking dark circles, but it's heavy enough to disguise your darkest tattoos, too. The tip makes application very precise and the formula is buildable, so you can reapply as much as needed. 
Tip: Select a tattoo cover-up that's a shade or two lighter than your normal color. The shade will look darker when blending over a dark tattoo.
Cream Concealer, $27 at DermStore
Judith August
We love that this concealer comes in five different shades, offering something for almost everyone. What's more" The formula is heavy enough to also hide scars, vitiligo, birthmarks, bruises and even veins.
Tip: Prep your skin first with an exfoliator to get rid of dead skin. Having a smooth, clean surface leads to the best results.
Killer Cover Co...