St. John's Wort is
the "ingredient", except there's none in there.
The 200C is called the "potency", but its actually the dilution. This dilution is equal to one drop of St. John's Wort diluted with water drops equal to 100,000 times the number of atoms in the observable universe. Which means, it's water. Assuming St. John's Wort even works, there is not a single molecule in there. Don't waste your time.