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EndoSan has a number of applications across a very wide variety of industries, what follows are the answers to a number of frequently asked questions. If you require further information or have a question that isn’t covered by these FAQ’s please use the enquiry form below to get in touch.

What is EndoSan exactly?

EndoSan is a unique formula of hydrogen peroxide which has been stabilized and catalysed by the addition of a small quantity of silver.

How does EndoSan work?

While neither hydrogen peroxide nor silver are particularly very good water system disinfectants when used individually, the combination produces a superb biocide. The mechanism is thought to be as follows: Hydrogen peroxide is not very effective against bacteria because these micro-organisms can secrete catalase which reacts with hydrogen peroxide preventing it from reaching the cell wall and destroy the bacterium. Therefore, if hydrogen peroxide is used alone a huge quantity is required.  This is where the silver plays an important role.  The silver emits electrostatic which de-stabilize the bacteria defence system (catalase enzyme) and allow the hydrogen peroxide to attack and destroy the bacteria. When the bacterium is dead, it is no longer attracted by the silver which moves back into the bulk water pulling the hydrogen peroxide behind it. This makes the solution very stable in water. The product also effervesces on the pipe wall helping to remove biofilm. Essentially the product has the chemical and physical properties required to remove and treat biofilm.

How stable is EndoSan?

EndoSan will remain active in cold water for many days and possibly weeks, depending on dosage level, environmental conditions and water quality, and if there are no bacteria for it to kill or other organic material for it to react with. It is also stable up to 113ºC and therefore does not break down in domestic hot water systems (generally operating at around 60ºC).

What proof is there that EndoSan is good at eradicating Legionella from domestic water systems?

An efficient legionella bactericide needs to do three things:

  1. It must be a fast Legionella, Listeria and Giardia bactericide;
  2. It must destroy the protozoa which can act as host for the Legionella bacterium;
  3. It must be capable of removing biofilm which can protect the legionella micro-organism.

A wide range of independent tests have confirmed that EndoSan does all these things when added to a water system.


Why do we need to disinfect?

Disinfection is different from cleaning.

Cleaning = the activity of making things clean, in a domestic or commercial environment.

Disinfection = the process that effectively kills or eliminates disease carrying microorganisms and prevent infection.

There are a lot of hydrogen peroxide products in the market, why EndoSan?

EndoSan is a unique formula and has gotten approvals from different organizations and governmental agencies worldwide in the past 25 years.

EndoSan provides 99.9% disinfecting ability as documented by scientific researches and laboratory tests worldwide.

The “Know how” of the manufacturing process is difficult to copy or imitate which gives the product the power to attack effectively all types of germs without any physical or chemical hazard.

Does EndoSan clean?

We recommend EndoSan for disinfection use after normal cleaning.

Is EndoSan safe for food?

Absolutely. EndoSan is safe for disinfection of fruits, vegetables, meat and fish by rinsing or washing at suggested dosage. EndoSan is also Halal certificated.

Are there any storage temperature constraints for EndoSan? Can it be stored outdoors?

Since EndoSan is formulated to be very stable, it can be stored outdoor in high temperatures. However, for best practice and to maximise product shelf life,  we recommend storage indoors and out of direct sunlight.

How can I check for the presence or residual level of EndoSan in water?

This can be checked by using peroxide testing strips, which we also provide, or by using a spectrograph (manual or automated).

Is EndoSan corrosive?

EndoSan is not corrosive at the recommended doses for most surfaces like stainless steel, aluminium, plastics, etc. Not recommended for use on brass or copper.

Does EndoSan bleach?

No EndoSan does not bleach at the recommended doses below 1%.

Does EndoSan damage skin tissue?

Not at recommended doses. EndoSan is skin safe below 3%.

Do I need to be concerned about the silver residue of EndoSan?

The silver content in EndoSan is at parts per billion (ppb) levels in all applications, which is minute and far less than international recommendations for safe consumption by humans.

Can EndoSan be mixed with other disinfection products?

We would not recommend you mix EndoSan with any other disinfection products.

Does EndoSan needs rinsing after application?

No, EndoSan consists of components which are biodegradable to two essential natural elements, water and oxygen.

What is EndoSan's shelf life?

Under ambient conditions EndoSan has a shelf life of 3 years.


Endo Enterprises (UK) Ltd
Unit 231, Europa Boulevard,
United Kingdom


Tel: +44 (0)1925 747 101


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