There are a lot of bugs in the alchemy formulas of the jman versions.
Jman blight protection, bolster dex, health, power, essence reaping, gineshs thickened skin, organic reaping, stone reaping and vestias are broken.
I would guess all the other ones are too, since every jman alchemy form has weird values but this doesn't happen on the expert ones. The glass vial skill ranges from a min of 490 skill for t1 potions to a few other wacky values.