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Herbs and Fruits
Sweet almond oil
Shea nut butter
Aloe vera gel
Powdered milk (cow or goat)
How Much to Add
Generally, you should add a tablespoon of additive for each pound of soap. You may need more or less for different recipes, so you will have to experiment. If you want to add two things, use a half of a tablespoon for each one. Adding too much can prevent your soap from setting up.
Do not add fresh fruits or vegetables to melt and pour base because the soap can become rancid.
Avoid using large pieces of herbs or flowers because they can clog your drain and make an uncomfortable bar of soap.
Do not use a harsh abrasive on your face.