8. Use fresh products
It is better to use fresh fruits when preparing a highlighting or coloring solution. If lemons are in season, you can source them straight from your own tree or that of your neighbors. This way you can be assured that the fruit you are using has not been sprayed or treated with chemicals. After gathering the lemons and washing them well, cut the lemons and squeeze the juice out. You can use a press for this process or you can do it by hand. When you’re done just transfer the freshly pressed lemon juice to a container.