I found more explanation at http://www.rawpaleodiet.org/h-ion/index.html:
"Microhydrin® is marketed by Royal Body Care, an MLM comapny, while Patrick
Flanagan's company, the Flantech Group, markets MegaH™.   These two products 
***are
the same***, but marketed under different names, and are approximately four 
times
more powerful than the original version of Microhydrin® (marketed through about
October 2001.)"

Then the author goes to describe his experience with imitators of Microhydrin® 
and
MegaH.

Roman


Roman wrote:

> I sent my reply too soon. Here's what Beyond-a-century's description of
> Megahydrin says: "After many years of being available only through expensive
> MLM, Dr Patrick Flanagan has made an even more potent version of his hydride
> formula available to retailers." This tells me that its the same thing as
> Microhydrin, only more powerful. Maybe more active substance in one caplet? 
> Am I
> assuming too much?
>
> By the way, SmartBomb (http://store.yahoo.com/smartbomb/) offers a better 
> price
> -- $20 vs $24 for the same amount. I hope this may be useful to you.
>
> Roman
>
> Brooks Bradley wrote:
>
> >                     Dear Roman,
> >                 We have, over the past four years, conducted an extensive
> > number of evaluations of different substances claiming to be micronized
> > silica hydride.  By far the most effective substance to be evaluated proved
> > to be Patrick Flanagan's Microhydrin.  Our present evaluations of Megahydrin
> > are still in progress......therefore we have no definitive data to
> > disclose----at this time.
> >                 From the various available sources for Megahydrin....by far
> > the most economical source (so I am informed by our purchasing agent) is
> > Beyond-a-century.  It is a Maine-based company that supplies a large number
> > of supplements, vitamins, etc..  They have a website.
> >                 This is not a recommendation for you to purchase any product
> > from them....or any other supplier----just a disclosure of our experiences.
> > We do not recommend anyone.....for anything.
> >                                 Sincerely,  Brooks Bradley.
> >
> > Roman wrote:
> >
> > > I remember reading here good things about Microhydrin. Have you heard of
> > > MegaHydrin? I am told that it's 4X as powerful as the original form of
> > > Microhydrin which Patrick Flanagan developed.
> > >
> > > Roman
> > >
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