With respect to the Lugol's Solution 2%, in general, it is simply a dilute formula of Iodine and Potassium Iodide in water (2% Iodine, 4% Potassium Iodide and 94% Distilled Water).

One would just double (more or less) the use level to achieve the same dosage as the Lugol's Solution 5%. The formula ingredients are the same.

The Gerson therapy calls for the 2%. Lugol's Solution is actually in the 4.5-5.5% Iodine range.

The "5%" is just a settled denominator for describing what is generally considered "Strong Iodine" (water based).

There are some purists who believe that the 2% Lugol's is not really Lugol's Solution. It is my opinion that is not exactly correct.

Lugol's Solution contains Iodine, Potassium Iodide and Water. That is the basis.

The % of dilution is a secondary matter. It was Lugol himself who established
the ingredients. The % would establish the strength.