*If you have a manicure, wear gloves, or use a fork during the mixing process.
In a mixing bowl combine the citric acid and baking soda, being sure to remove all lumps.
Add in mica, melted butter and essential oil and continue to mix.
Using your spray bottle, spray the mixture 2-3 times and mix, slowly adding more witch hazel until the mixture holds it shaped when pressed together.
Press the mixture into silicone molds, making sure to compact them tightly.
Allow to dry in silicon molds for 12 hours. Once 12 hours is up, remove from molds, and allow to dry an additional 24 hours for a nice hard bath bomb.