I just started taking it myself, so I'm not much of an authority. I just started exploring, and that's part of the reason I posted about it online, to collect more anecdata from others. From what I've been reading in my research, it synergizes really well magnesium. But based on the logic of why, that's really only relevant for for its bone-healthy and calcium-related effects.
There's a magnesium-calcium exchange in muscle tissue when you clench/unclench muscles. Calcium can get locked in the tissue, and that's what boron fixes. If you take magnesium with the boron, that allows the magnesium to flush out the stuck calcium, freeing it up to balance electrolytes and be re-absorbed into bones/teeth, etc. (I'm summarizing stuff I learned a few days ago, so take this all with a grain of salt).
That was the logic behind boron+magnesium (and why you can get more calcium by doing that, even without taking calcium). Maybe there's another reason, but it seems like if your bones and electrolytes are fine, then the magnesium isn't especially important.
Also, it increases the lifespan of vitamin D in the body. So if you're supplementing that, boron ought to help that be more effective.
That's all I've found so far for specific synergies.
Really? The recommended amounts seem to be in the 3-9 mg range, for daily usage and maintenance (up to like 20mg if you're treating acute arthritis or something). Supplements I bought were cheap; $10 for 300 3 mg tablets. That's five months of a normal 6 mg dosage for 10 bucks.
They say a "dose" of borax is more like 30 mg, but only because you need 30 mg of borax to get 3 mg of boron. I don't think the boron dosages are different.
Did I misunderstand something?
Have you tried taking boron supplements? One thing that hasn't been made clear in my research is the significance of Borax vs Boron. It's sodium borate versus boron citrate, more or less, and I don't know how/if that matters.
I kind of trust borax to be made of what it says more than any given supplement provider, so there's that.
According to this, 1 teaspoon of borax to 1 liter of water creates a concentrate, of which 1 teaspoon is a 3mg dose or boron.
Firstly dissolve a lightly rounded teaspoonful (5-6 grams) of borax in 1 litre of good quality water. This is your concentrated solution, keep it out of reach of small children. Standard dose = 1 teaspoon (5 ml) of concentrate. This has 25 to 30 mg of borax and provides about 3 mg of boron. Take 1 dose per day mixed with drink or food. If that feels right then take a second dose with another meal. If there is no specific health problem or for maintenance you may continue indefinitely with 1 or 2 doses daily.
That concentrate method is probably the way to go, but it looks like "25 to 30 mg of Borax to 3 mg of Boron" is your exact answer.
This looks like an error with whatever website he's using. The official results have different data. Set County Breakdown to Yes and you can see the real totals and they're all different.
I'm not saying there was no fraud, but shakycam of an unspecified unofficial reporting website front end is not credible evidence.