Sovereign Glue states that if you have multiple doses worth and wish for the rest in the bottle / vial not to harden that you have to use the Salve of Slipperiness on it.
My question is, do you have to have a Salve of Slipperiness for each dose of Sovereign Glue? Or would just one Salve of Slipperiness handle all the doses?
I say don't worry about it, buy it in individual 1 oz. single-serve lots. There is no benefit that I can see to get more than 1 dose in a vial and plenty of downside.