The Best Colloidal Silver Generators
Retail Buyers Guide - Buying a Quality Generator

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Welcome to our colloidal silver generator center, which has been designed to provide information on quality colloidal silver generators and the processes by which colloidal silver is made. In this section you can explore, review, and rate www.silvermedicine.org approved products and equipment.

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Colloidal Silver Generators

Colloidal Silver Generators: Electrically Isolated Silver (EIS)

www.Silvermedicine.org is currently not specifically endorsing any particular model of colloidal silver generator. Rather, this section has been designed to give the interested individual the information necessary to make a an excellent purchase decision.

We now only list a few generators. This is mostly due to the aggressive marketing hype out there, not necessarily because other equipment is not good. We would much rather people take the time to learn what makes good EIS, good EIS, and make their own choices!

Size Matters

The first decision anyone interested in purchasing a colloidal silver generator must make is regarding the capacity. How much colloidal silver will you need? Just enough for yourself and a small family, or more?

The small units on the market are very affordable, but only produce enough colloidal silver for personal use. Most will easily generate enough CS for two people.

It is easier to produce a high quality batch of colloidal silver with a small generator, primarily because it is easier to manage all of the variables of colloidal silver production. The quality of an EIS (Electrically Isolated Silver) is dependent upon the acutal surface area of silver in the water. Smaller electrodes can be used without much consequence with smaller colloidal silver generators.

We currently don't have a recommendation for high capacity colloidal silver generators. Educate yourself completely before making a purchase! There are pitfalls with generators that use HVAC, and generators that recommend using a conductive agent in-process!

Shape, Configuration and Placement of the Electrodes

The simplest generators use straight, pure silver electrodes (all silver used must be at least 99.99% pure) placed directly into water; often times with the electrodes spaced haphazardly. While this method works, it is not ideal. Furthermore, some units are sold with the electrodes bent with top hooks, so that the electrodes sit on the edges of the glass containers. This is not correct, as it changes the conductivity of the water around the rim.

Therefore, pay very careful attention to the electrode configuration. The more surface area of silver in the water, the better the production process. The placement of the electrodes is also important. The electrodes should be in the middle of the production vessel. The spacing of the electrodes is also critical. For units with no circulation, the electrodes should be evenly spaced, with an equal distance between electrodes and the sides of the "brewing" container.

What We Won't Include

  • We won't include companies who sell colloidal silver generators that use hype to promote sales (even if their generation device is of acceptable quality)
  • We won't include companies who promote making lower quality colloidal silver. This includes generators that use air bubbling devices to stir (introduces contaminants and nitrogen into the distilled water). It also includes companies that promote using a baking soda, salt, or hydrogen peroxide primer (H2o2 used during the production phase). It also includes companies that promote "golden" colloidal silver as being superior to EIS that is crystal clear.
  • We won't include companies that produce colloidal silver generators that are, in essence, the most basic colloidal silver generator possible.

Coyote ZEnterprizes Silverpuppy - Thermal Series 2 Colloidal Silver Generator

  • Priced at $160.00, features low current use, thermal convection stirring, unique electrode configuration, unique PPM calculations for higher PPM brews

Sota Instruments Colloidal Silver Generator - The Silver Pulser and the Silver Pulser Lite colloidal silver generator

  • Priced from $280, Sota features a low constant current, sleek engineered generator which doubles as a bio-stimulator, uses .9999 silver, with SEM and antibacterial studies available.

Biophysica Colloidal Silver and Gold Generators - CS2A, CS3A and CS12A - colloidal silver generators

  • Constant current colloidal silver generator with 12 current settings, motorized stirring, and automatic current stepping (adjusts the current automatically to control the electrolysis process). Models priced from $700.00.
  • Time kill studies done - 4 and 8 minute laboratory tests show that the Biophysica Generators perform excellent.
  • Ph analysis reads PH 6.96, very close to true nuetral.

Atlasnova Colloidal Silver Generators - Currently offers four colloidal silver generator models priced from about $80 to $270. Unlike the more automated units, these are more "geeky" colloidal silver generators.

SIS Machines - Silver Iontophoresis Devices - Based out of New Zealand, SIS has developed equipment that delivers silver ions into the body's tissues via an electrical current and silver nylon dressings. No doubt based on the work of Dr. Robert O. Becker and Dr. Bart Flick, these unique and amazing devices are useful for wound healing and infection treatment.

Looking for a tutorial on building / making your own colloidal silver generator? Read our "just the basics" tutorial.

Feel free to leave a comment below. Do you use a different generator than listed above? Feel free to tell us about it!

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Comments (15)

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Wilma Rademaker (St. Peters, Missouri, US) says...

I have the Silver Gen. SG4 120 volt politary reversing. It’s about 3 years old with no problems. It’s small but I only make a quart at a time. Have only called company once with a question and they were very helpful.

Arnold says...

If ingested which is better? Ionic silver from the generators or true colloidal silver?


It depends what you are trying to do.  However, when dealing with silver colloids, you have to be careful, and you have to educate yourself about particle characteristics.  The smaller colloidal particles become, the more dangerous they are, especially when you get below the range of 20 nanometers in diameter.  They have to be made carefully in order to avoid being cytotoxic.  If you look silvermedicine up on facebook, we have links to quite a few formal studies that look at particles vs ions, and particle characteristics.

They haven't been added to the website as of yet.

PL (Dallas, US) says...

Hi I've got a like new Silverlungs generator unit (base generator kit) + nebulizer (the grey one) for sale. I got four machines for making CS but we're so used to sota's so we just used silver lungs twice, pretty much like brand new. Trying to get cash for a therapeutic grade ozonator. Anyway, brand new they would cost $425 I'll take $320 + $15 shipping = $335. Let me know thanks!

You can email me:  pet_low at hotmail.com

Guy Clifford (Fort Lauderdale, Florida, US) says...

I have a Silver Lungs cs generator. I have made approximately 12 bottles of cs water to their very specific instructions. Each bottle should be enough for a month of daily doses. Only one batch has ever lasted a month. The others either turn pink or dark grey. When I consult Silver Lungs they tell me I am contaminating my system somehow. They are not very helpful. Has anyone else experienced this problem? I am not impressed with the lack of help from Silver Lungs.


I would switch to one of the reviewed companies, and use a unit such as Silver Puppy.  The Silver Lungs unit is not reviewed here for good reason.

J Yoch says...

Please let us known your opinion of the Silver Gen generator, we have been using one for awhile. Thank you.


...Silvergen is one of our favorite units, although we use the SG-7 and not the smaller unit.

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