This concealor is a keeper! i hated it at first because it takes practicee to mix the two colors well but the coverage and staying powder is so great it's well worth the trouble! It's not cheap but a little goes a long way. I only use it on my pimples so i dont' know how it works on undereye circles but i think you can add in a little eye cream to make it an undereye concealor.
