Prep your mold as before. Then I'm a large mixing bowl combine 1 part citric acid and 2parts baking soda. Using a gloved hand mix together until they are well combined! Next add fragrance and color and mix it up! Try to stay away from food coloring. You don't want to turn yourself pink! Add witch hazel into your mixture until you can squeeze it and it holds its shape! Now, pack it into your mold and let it set up! Remove from mold and remove stamp and you are done!