This potion can also be safely used by Earth Elemental witches. It is noted that many non-witches believe that witches actually use rendered babies to make this potion adding to the distrust of witches.
Liber Mysterium The Netbook of Witches and Warlocks
By Timothy S. Brannan and The Netbook of Witches and Warlocks Team
This oily rub is made from the fat of a consecrated animal. The ointment is rubbed over the witch’s body and it allows her to fly as per the Fly spell.