Definitions:
CHI - concentrated health infusion
CVI - concentrated vitriol infusion
HD - health draught
HI - health infusion
HP - health potion
NB - neutral balm
RP - realgar pea
THE - trade health elixir
VI - vitriol infusion
VP - vitriol pea

Components:
To make 50 THE, you will need:
* alembic
* eye dropper
* 2 VP
* 1 RP
* 50 NB

Directions:
1. alembic + VP = CHI
2. alembic + RP = CVI
3. eyedropper + CHI = 50 HI
4. eyedropper + CVI = 50 VI
5. HI + NB = HD
6. VI + HD = HP
7. HI + HP = THE

The difficulty is 230.

Interesting Facts

After doing a little research tonight we found there to be 3 methods for crafting these Trade Potions.

Method One: Creation From Scratch
Method Two: Creation From Health Draught
Method Three: Creation from Health Potion

We ran around Dereth looking for the best prices on these draughts and potions. We found that the starter towns (Shoushi,Holtburg,Yaraq) are the best places to buy these items. Health Draughts are 270p and Health Potions are 675p. Now as for the other needed components (vitriol pea,realgar pea, neutral balm) we concluded that the Mayoi Master Mage carries these at the best price. Pretty handy that you only need to make one trip for these too.

Price Results (per 50 Trade Elixers)
Method One: 9764p
Method Two: 14876p
Method Three: 33750p

Conclusion
In our opinion the time saved using the Health Potions far out weighs the additional cost of approximately 24,000p. When we tested for speed it took 5 minutes to make 50 Trade Potions ( with some failures) while using the Health Potions. In comparision it took roughly 20 minutes while making these Trade Potions from scratch.