When it is melted, take it off the heat or out of the microwave oven carefully and set aside so that it starts to cool slightly. Now it's time to add any other ingredients that you may wish to. If you want to colour your soap, add WB (water based) or NWB (non water based) colours a few drops at a time and stir thoroughly but gently to get the even shade you want. These colours are strong so remember to only add a few drops at a time. Why not try mixing colours together to get different shades.
Now add any essential oils, fragrances or carrier oils that you want to include. Make sure they are stirred in thoroughly but gently so as not to create too many air bubbles.
Slowly pour your soap into individual moulds or into a loaf mould for slicing later. Tap the mould gently to knock out any air bubbles and spray the surface with Isopropyl Alcohol if you have any as this will disperse the air bubbles. Don't worry if you don't have any Isopropyl Alcohol, any air bubbles that are on the surface will disappear when you use the soap.
When the soaps have hardened completely, turn them out of the moulds, slice the loaf and wrap immediately.