This is by far the most popular concealer since its released. This product never disappoint in terms of formulation. However, it's actually lacking in some aspect including hygiene. As you know it comes with a sponge applicator tip which is new in the concealer world. It makes concealer application easier but it kinda look gross the more you use it.
This concealer from MAC is also popular, mainly because it's MAC so everybody trust the brand.
Number five, The Face Shop Face&it Radiance Concealer Dual Veil.
People call it beauty weapon because it has double function: there is a concealer stick on one end and the other end has liquid type. It's great all over concealer, both for dark circles and redness.