Re: some proteins protect bacteria from oxygen

I only know of two that I would consider the highest quality
with nano-sized particals. purest---colloids.com is one available
right now (but is a bit pricey), and QuantumSilver is one that
will be available within the next month or so on ebay. I happen
to know the owner of this latter company that is just getting
started and it should be much more reasonible in price, but a
similar high quality to purest---colloids.