Using the right product on only areas where there’s a need will give you the most complimentary, natural coverage you can hope for. If your dark circles are only dark in the inner corner of your eye, then only put concealer in that area. If you aren’t dark on the outer area of your eye, do not put concealer there as it doesn’t need it! If you’re dark around your entire orbital area, meaning the skin around the totality of your eye, then feel free to use concealer over the whole area - yet still only using pin dots. A soft touch is the key to successful application and the end result you’re striving for! Same goes for blemishes or redness, only apply where it's needed. If you have the correct shade, it should blend seamlessly into your skin so you don't need to apply more product to the surrounding areas.