Question: To color homemade toothpaste.
Option 0: Mix the food coloring (if it's powdered) with a spoonful of vodka. You don't need much. It's just for fun anyway. Add it to your mixture. If your food coloring is liquid, just pour some in.
Option 1: Mix the food coloring (if it's powdered) with a spoonful of oil. You don't need much. It's just for fun anyway. Add it to your mixture. If your food coloring is liquid, just pour some in.
Answer: 0