well; to get a terapeutic level of boron I would have to take 6-10 capsules of Boron a day.
In the capsules it is magnesium stearate and other fillers which I try to avoid. The boron in the capsule is made of Borax anyway; and is easy to put into water or make capsules without any filler.
It would also cost me about 1-2 $ a day to take that many boron capsules if I bought them in the health store; thats how expensive supplements is in my country.
I used a good multiple mineral for years with 3mg boron in;
Nothing of these good things happened back then;
Today I am candida symptom free (after 20 years of monthly outbreaks); many thanks to Iodine and borax.