Face Tips. Dark spots and freckles on the face. Lemon is very effective in removing freckles and spots on the face. It acts as a tonic for the skin. The following formula can be used to remove freckles from the skin. Make a paste with half a lemon, half a spoon of turmeric and two spoons of gram flour. Apply this paste to your face twice or thrice a day. This is a very useful formula to get rid of dark spots and freckles.