You can make summoning potion by combining one Spirit Weed, one Cockatrice egg and a Water filled vial this potion requires 40 Herblore to make. It restores between 7-31 depending on your Summoning level, and recovers 25% of your familiars special per dose.
This is the only portable way of regaining Summoning points, the fantastic ability in which is often overlooked is that it restores 25% of your familiars special. Which when using a Familiar such as a Unicorn Stallion you may find a time when you are in need of it's Special for Hitpoint's gain.
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