Colloidal Silver independent
 scientific tests

New Zealand Colloidal Silvers tested for
effectiveness in killing bacteria by
 independent laboratories

We have recently spent a large sum of money to independently test the bacteria killing effectiveness of of the main Colloidal Silver brands on sale in New Zealand.

 Colloidal Silver testing results

To do this, we took our Health House Colloidal Silver (manufactured for us by Ephraim Health). Also the following brands: NZ Pure, Skybright, and Silver Solution. And sent them off for a range of independent scientific tests.

Test one: PPM Readings
Our own factory, Tauranga

We used our PPM (parts per million) testing equipment to obtain PPM readings. Skybright and Health House Colloidal Silver both tested higher than was claimed.

 NZ Pure was less, and Silver Solution read the maximum of 99. This indicated that there was something foreign in the Silver Solution. This was confirmed in later testing.

They tested for Dissolved Silver and Whole Silver. (You can see explanation of 'Dissolved' and 'Whole Silver' in David’s editorial below.)

The first figure is Dissolved Silver, and the second Whole Silver

For the full PDF Test Results Report click here

All the Colloidal Silvers killed the bacteria within 24 hours. And 48 hours later, the bacteria had not reappeared. This is a great result and proves that Colloidal Silver kills bacteria (staph).

However Skybright showed a small increase in bacteria level, before eventually killing all the bacteria.

Health House Colloidal Silver actually showed an initial instant decrease in bacteria level. This was a great result. But as we initially only tested at Zero, 24 and 48 hours, it did not conclusively answer our question as to which was the best.

For a full report of test results click here.

We then had photos taken using an Electron Microscope and the number of silver particles were measured and counted.

Two of the silvers showed unidentified particles that were not silver.  Due to this we decided to exclude these two from our final test. For Electron Microscope photos click here.

Both NZ Pure and Health House Colloidal Silver showed a good spread of optimum sized particles in the Electron Microscope photos. So we decided to send them off for a final head-to-head test. 

This was the same as Test three, but a reading was done every hour, so we could find out how quickly they killed the bacteria.

The results were highly interesting - click here. The double strength Health House  Colloidal Silver was the only Colloidal Silver among all those tested, to immediately kill almost all of the bacteria. Within the hour all bacteria was killed.

* The busy University requested not to be named to avoid being overwhelmed with electron microscope work.

Gold coloured Colloidal Silver
 tested the best

Editorial by David Coory, author of the nutrition book
 "Stay Healthy by Supplying What's Lacking in Your Diet" and Director and founder of Zealand Publishing House (also trading as 'Health House').

We have finally disproved the common claim that clear Colloidal Silver is better than golden coloured Colloidal Silver. The double strength Ephraim Health manufactured Colloidal Silver that we presently sell under our Health House brand, was the only golden hued Colloidal Silver among all those tested and came out on top. All of the others were clear.

I have long believed gold coloured Colloidal Silver to be the best. Clear Colloidal Silver has never seemed to work well for me. Francis Key, founder of the New Jersey, Colloidal Science Laboratory and probably the most experienced Colloidal Silver scientist in the world, has long maintained that a gold colour is a sign of intact stable Whole Silver particles in the water (rather than invisible and unstable Dissolved or Ionic particles).

These stable Whole Particles remain intact inside the body in the blood stream and do their useful work. Provided however they are finely dispersed and not clumped together (as in dark brown Colloidal Silver). We had the Colloidal Silvers photographed with an electron microscope to check out this aspect.

Evidently unstable Ionic silver particles work fine outside the body, but when they come into contact with hydrochloric acid in the stomach and the blood stream, they become converted to Silver Chloride and there is serious doubt as to whether the body can still use them.

The double strength Colloidal Silver made with our domestic Health House generator is also gold in colour. We did not test this silver, but it appears to me to work equally as well as our manufactured Colloidal Silver when made correctly.

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