MIRACLE In my opinion concealer is the most important necessity of ones personal makeup kit or that of a makeup artist. There are so many benefits from finding the correct concealer. Using it correctly, concealer can change a persons life as far as physically and mentally. I say mentally because having that confidence  to know you have flawless even skin is priceless, even if it is temporary. Targeting mainly on areas such as under the eye, sometimes over the eye lid, and areas around the face that are stained with hyperpigmentation, acne scars, etc. the right concealer does wonders on concealing imperfections. 

TYPES OF CONCEALERS Cream concealer is the best type of concealer to me. I prefer cream over liquid. It just gets the job done better in my opinion. It offers better coverage, as well as better control when applying the product. There are many different applications and techniques to applying  concealer, but my advice is to find a routine that works best for you, as well as taking into consideration of how much hyperpigmentation and darks areas you may have.Top brand like MAC, Estee lauder, Makeup forever, Eve pearl, Bobbi Brown, or Dermablend all have great choices when it comes to concealer. They may be a little pricey but, the price reflects its quality. One affordable good quality concealer i've found is from Coastal scents. They cave a couple of nice palettes that are cream based and works just as well as some of the top brands. 
  
SHADES  If you have found your perfect foundation shade then finding your perfect concealer shade will not be hard at all. Your concealer is usually one to two shades lighter than your foundation, and just like foundation you can mix colors for the perfect combination. Different shades of colors you need may differ when it comes to different parts of the face and neck, depending on the dark area and how pigmented it is, and a color corrector may be necessary.