To make your soap a little easier to remove from the silicone mold, you can coat the inside with non-stick cooking spray. Then cut your soap base into small pieces (1” or smaller) to help the soap melt more evenly and quickly.
Place the soap chunks into a double boiler and heat over medium heat until the soap is completely melted. If you don't have a double boiler, you can place a glass bowl into a pan of water to get the same effect.
Remove the double boiler pan from the heat and stir in activated charcoal powder until completely mixed.
Next, stir in the jojoba oil, rose water, glycerin and your essential oils.
Quickly pour into your silicone mold, filling to the top. If you don't have a silicone mold, you can use any kind of soap mold, an ice cube tray or even small paper cups to mold your soap. I find silicone molds are the easiest to remove the soap from and to clean up, with no waste afterwards. So I'd pick one up if you don't have one yet.
Allow your charcoal soap to set for several hours until completely hardened, then carefully remove your soaps from the mold.