The biggest problem I have had since switching to mineral makeup has been finding a concealer that will effectively cover my hyper-pigmentation (also known as "age spots"). My search is over! I ordered a sample size of the yellow concealer, skeptical that it would really work. I am happy to report that this product does work- and it works well. I use a concealer brush (a must-have item) to apply it under my foundation. My age spots are barely noticeable, thanks to this product. I love it!