[quote=Renose]
Material wise you need 20 iL of materials to create them (i gave you that one for free though with your Profession, as there are a few other things needed for creating this special Elixir). Also Dl to create one is 30 (so with your high score in Herb Craft you would need a 13 on the die roll).
[/quote]

Using other special herbs with known or basic medicinal or healing properties can lower the cost to around 10 or so iL. (Things like these are some of the few herbal concoctions that actually have material costs due to how special they are)