Alter Aeon Online Help

Keywords are:  'skill reduce reagent reduction'

Skill: reduce reagent           Lvl 36  Any  (28%)
                                (helpful)   Requires: reagent lore
                                Group: Decantation
                                Profession

Usage:
reduce reagent
reduce reagent <spellcomp>

A skilled alchemist can increase the potency of most spell components
by reducing it to a more concentrated form. Reducing a spell component
transforms it into a refined powder that, while weighing a quarter of
the base material, is higher in level. The color of the reduction
can vary wildly, depending on what impurities were present in the
original sample.

Very high level spell components are generally too potent to be
concentrated further. Likewise, spell components that do not save or
time out are too volatile to be concentrated.

Only small amounts of spell components can be processed at a time.
You need at least 4 pounds to make a reduction.

Reduced spell components do not save, so it is best to prepare
them just before you begin brewing.

If you know brew tonic, you can reduce herbs as well as spell
components. However, the process will transform the herb into
a spell component.