Colloidal silver, also known as silver water, is a topic that is attracting more and more attention these days. Although it is not a new discovery, its use and benefits are often a matter of discussion and controversy.

In this article, we'll take a look at what colloidal silver is, how it's produced, what its potential benefits and risks are, and what experts say about it.


1. What is colloidal silver?


Colloidal silver, also known as silver water, is a liquid that contains microscopic particles of silver. These particles are so small that they are usually less than 100 nanometers in size, making them invisible to the human eye and allowing the silver water to remain transparent.


The colloidal state of silver particles means that they are evenly distributed in the liquid without settling to the bottom, thanks to electrostatic forces that prevent them from agglomerating ( clumping ).

The main idea behind the creation of colloidal silver is to use the antimicrobial properties of silver, which have been known since antiquity. Silver has the ability to destroy various types of microorganisms such as bacteria, viruses and fungi. This is due to the ability of silver ions to interact with vital enzymes and components of microbial cells.


History and traditional uses of colloidal silver


Historically, silver was used in medicine long before the development of modern antibiotics. In the early 20th century, before the advent of penicillin, silver compounds were widely used to treat infections and disinfect medical instruments.


This practice declined with the discovery of more effective and cheaper antibiotics.


Ancient Greece and Rome

In ancient Greece and Rome, silver was used to store water and other liquids to prevent the growth of bacteria and fungi. People at that time stored water in silver containers to keep it fresh for a longer period. Silver coins were placed in containers of milk to slow the spoiling process. These practices demonstrate the early understanding of silver's antimicrobial properties.


Middle Ages

During the Middle Ages, silver continued to be used in medicine. Wealthy families had silverware and utensils, believing it would protect them from disease. Silver nitrate was used to treat ulcers and wounds. Doctors at the time applied silver dressings to wounds to speed healing and prevent infections.


Modern applications

Nowadays, silver is finding new applications in various fields. Colloidal silver is popular in alternative medicine.

Silver nanoparticles are widely used in modern industry. They are added to a variety of products including clothing, food and cosmetics because of their antimicrobial properties. Silver nanoparticles are used in medical devices such as catheters and implants to reduce the risk of infections.


2. What are the benefits of colloidal silver?


What are the benefits of colloidal silver


Colloidal silver is used for various health purposes due to its potential antimicrobial, anti-inflammatory and immunomodulatory ( strengthening ) properties.


Antibacterial properties


Colloidal silver is well known for its antimicrobial properties. Silver ions are effective against a wide range of bacteria, including some antibiotic-resistant strains. This makes silver water useful for disinfecting wounds and preventing bacterial infections.


Anti-inflammatory properties


Some studies have shown that silver nanoparticles can reduce inflammation by inhibiting the release of proinflammatory cytokines. This may be useful in treating inflammatory conditions such as dermatitis and arthritis.


The benefits of colloidal silver for the immune system


Some studies suggest that silver water may have immunomodulatory effects, meaning that it may help regulate the immune system. This includes stimulating the immune response against pathogens and reducing excessive inflammatory responses.


The benefits of colloidal silver for the skin


Colloidal silver is often used to treat various skin problems. Its antimicrobial and anti-inflammatory properties make it suitable for treating acne, eczema, psoriasis and other skin conditions.


For acne, silver water can help reduce the bacterial load on the skin and reduce inflammation. In eczema and psoriasis, it can help relieve symptoms by reducing inflammation and improving the skin's barrier function.


The benefits of colloidal silver for the respiratory system


Colloidal silver can also be used to relieve symptoms of respiratory infections. Silver water inhalations are popular in some alternative medicine practices to treat sinusitis, bronchitis and other respiratory ailments. Silver ions can help destroy bacteria and viruses in the respiratory tract, thereby reducing inflammation and making breathing easier.


Oral hygiene


Oral hygiene


Colloidal silver can be used as a mouthwash to reduce bacterial load in the oral cavity, prevent gingivitis and periodontal disease, and freshen breath. The antimicrobial properties of silver ions help destroy the bacteria that cause tooth decay and gum inflammation.


Home hygiene


Apart from medical applications, colloidal silver is also used for various domestic purposes. It can be used to disinfect surfaces, clean fruits and vegetables, and purify water. Silver water can be added to water tanks to prevent the growth of bacteria and algae. This is particularly useful in areas with limited access to clean water.


The benefits of colloidal silver for pets


Colloidal silver is also used in animal husbandry and veterinary medicine. It is used to treat infections in animals and to maintain hygiene on livestock farms. Veterinarians often use silver water to treat wounds and infections in pets and farm animals. Its antimicrobial properties help prevent infections and speed up the healing process.


The benefits of colloidal silver for plants


The benefits of colloidal silver for plants


Colloidal silver can also be good for plants. It can be used to protect plants from bacterial and fungal infections. This application is particularly useful in organic farming where the use of chemical pesticides is avoided.


3. How to make colloidal silver yourself?


The production of colloidal silver at home requires a careful approach and proper equipment to ensure the quality and safety of the final product. It is important to use clean materials and strictly follow the production process.


Here are the steps and equipment you will need to make silver water at home:


Required equipment and materials


  • Colloidal silver generator: The main appliance for silver water production is the colloidal silver generator. This device uses electric current to dissolve the silver particles in the water;
  • Silver electrodes: Use high purity electrodes (99.99% silver);
  • Power supply unit: The power supply unit provides a stable and constant current;
  • Conductors: To connect the electrodes to the power supply unit;
  • Electrode stand: Keeps electrodes stable in water.


Distilled water

Distilled water is necessary because it does not contain minerals and other impurities that can interact with silver and reduce the effectiveness of colloidal silver water.


TDS Meter ( Total Dissolved Solids Meter )

The TDS meter measures the concentration of dissolved silver particles in the water. This is important for controlling the quality of the final product.


How to make colloidal silver yourself - step by step guide


1. Preparing the electrodes

  1. Cleaning: Make sure the silver electrodes are clean and free of dirt. You can clean them with distilled water and a soft cloth;
  2. Placement the electrodes in the stand: Place the electrodes in the stand so that they are stable and do not touch each other.


2. Producing colloidal silver

  1. Use distilled water: Fill a clean glass container with distilled water. Avoid plastic containers as they can release chemicals into the solution;
  2. Immerse the electrodes: Immerse the electrodes in the water, making sure they are correctly positioned and stable.
  3. Connecting the power supply unit: Connect the colloidal silver generator to the power supply unit and switch on the appliance;
  4. Duration: Allow the generator to run for a set amount of time depending on the desired concentration. The process usually takes between 10-30 minutes and several hours;
  5. Check the concentration: Use the TDS meter to check the concentration of silver particles in the water. Typically, the goal is to achieve a concentration of about 5 to 20 ppm ( parts per million ).


3. Finishing and storage

  1. Switching off the appliance: After reaching the desired concentration, turn off the generator and carefully remove the electrodes;
  2. Filtration ( optional ): If there are visible particles or sediment, filter the solution using a coffee filter or other suitable filter;
  3. Storage: Store silver water in dark glass bottles in a cool, dark place to preserve its effectiveness.


Portable colloidal silver generators


With the advancement of technology, portable colloidal silver generators are now available in the market which make the process much more convenient and easy for users.


Advantages of portable generators:


Ease of use

The portable colloidal silver generators are designed to be easy to use even by people without technical experience. They usually come with instructions for use that explain the process step by step.


Speed and efficiency

These devices can produce silver water in a much shorter time compared to traditional methods. Some models can generate silver water in as little as 10-15 minutes.


Compact and travel ready

The portable units are compact and easy to carry, making them ideal for use at home, in the office or even while traveling. They often run on batteries or USB power, making them even easier to use.


Control of silver particle concentration

Many of these instruments have built-in automatic silver particle concentration control features, eliminating the need for manual measurement and minimizing the risk of errors.


Safety recommendations


  • Avoid excessive concentration: Excessive concentration of silver particles can be toxic. Always monitor the concentration and follow the recommendations;
  • Consultation with a medical professional: Consult a doctor or other qualified professional before using colloidal silver;
  • Use quality materials and appliances: Use only high quality materials and generators to produce silver water.


The production of colloidal silver at home requires careful observation of the process and the use of appropriate equipment. Silver water can be useful for a variety of applications, but safety and quality should always come first.


4. How to drink colloidal silver?


Drinking colloidal silver requires care and precision to reap maximum benefits without causing side effects.


Recommended dosage


The recommended dosage of colloidal silver depends on a variety of factors, including the concentration of silver in the solution, the purpose of use, and the user's individual characteristics such as age, weight, and health.

Here we will look at the main factors to consider when determining the correct dosage:


Recommended dosage


Concentration of silver ions

Colloidal silver is available in various concentrations measured in parts per million ( ppm ). The most common concentrations range between 10 ppm and 50 ppm. It is important to understand that a higher concentration does not always mean better results.


Individual characteristics

The individual characteristics of the user should be taken into account when determining the dose. People of lower weight or with specific health problems may need a lower dose. Pregnant and breastfeeding women should also be particularly careful and consult a doctor before use.


Dosage for adults

For adults, a dosage of 1 to 2 tablespoons daily, divided into two intakes - in the morning and evening is usually recommended. This amount is sufficient to achieve the desired antimicrobial effects without accumulating excess silver in the body. At higher concentrations of silver in the solution, the dose may be reduced.


Dosage for children

The dose for children should be significantly lower to prevent unwanted side effects. Usually about 1 teaspoon daily is recommended, depending on the age and weight of the child. It is important to consult a pediatrician before giving colloidal silver to your children to make sure it is safe for them.


Special cases

In some cases, such as acute infections or to speed up recovery after surgery, a temporary increase in dose may be necessary. This should only be done under the supervision of a healthcare professional who can assess the need for and safety of the higher dose.


The importance of correct dosage

Adhering to the recommended dosage is essential for the safety and effectiveness of colloidal silver. Excessive use can lead to a build-up of silver in the body and the development of conditions such as argyria. Proper dosage provides maximum benefits without a high risk of side effects.


How to take colloidal silver?


Taking colloidal silver requires precision and care to ensure maximum effectiveness and safety.


In this section, we will review best practices for silver water intake, including appropriate intake times, consumption frequency, and considerations for optimal absorption.


Best time to take colloidal silver

The best time to take colloidal silver is in the morning and evening. Taking it in the morning on an empty stomach ensures rapid absorption of silver ions into the bloodstream, which increases their effectiveness. Evening ingestion before bed helps maintain the body's silver level overnight as the body recovers and regenerates.


Appropriate method of intake

Silver water can be taken directly from a spoon or diluted with a small amount of plain water. Some people prefer to hold it in the mouth for about 30 seconds before swallowing. This technique can help to better absorb the silver ions through the lining of the mouth.


Eating and colloidal silver intake

For optimal results, colloidal silver should be taken on an empty stomach. This means that you should not eat for at least 30 minutes before and after taking the silver water. This prevents interaction with food and other beverages that can reduce the effectiveness of the silver ions.


Eating and colloidal silver intake


Intake frequency


The frequency of colloidal silver intake is a key factor in ensuring its effectiveness and safety. Understanding the appropriate frequency can help achieve optimal results for a variety of health conditions and goals.


Daily intake

Colloidal silver is usually taken twice a day - in the morning and in the evening. This frequency of intake allows for the maintenance of a constant level of silver ions in the body, which is important for long-term protection against pathogens and for supporting the immune system. Splitting the dose into two intakes also helps for better absorption and reduces the risk of overloading the body.


Intake in people with acute conditions

In cases of acute infections or health problems, it may be necessary to temporarily increase the frequency of colloidal silver intake. In such conditions, taking it three or four times a day for a short period of time may be recommended. This should be done under the supervision of a healthcare professional who can assess the need for and safety of more frequent intake.


Preventive use

For preventive purposes, colloidal silver can be taken once a day, especially during seasons with an increased risk of infection, such as flu seasons or when traveling in areas with poor sanitation. Preventive use helps strengthen the immune system and reduce the likelihood of developing infections.


Recommended duration of intake

The duration of intake of colloidal silver should be limited, usually between 7 and 10 days. After this period, it is advisable to take a break of at least one week. This allows the body to cleanse itself of accumulated silver and reduces the risk of unwanted side effects such as argyria.


How to store colloidal silver?


Avoiding contact with metals

When storing and using colloidal silver, it is important to avoid contact with metal objects other than the silver particles themselves. Metal utensils or caps can cause a reaction with the silver ions and reduce their effectiveness. It is therefore recommended to use plastic or glassware when pouring and using colloidal silver.


Storage containers

Colloidal silver should be stored in dark glass bottles. Glass is inert and does not react with silver ions, thus preserving their properties. Dark bottles protect the solution from exposure to light, which can cause degradation of the silver particles. Plastic containers are not recommended as they may interact with the silver ions and reduce their effectiveness.


Storage containers


Temperature and storage location

Colloidal silver should be stored in a cool, dark place. The ideal storage temperature is between 5°C and 25°C. Avoid places with direct sunlight and high temperatures as heat and light can accelerate the breakdown of silver ions. Refrigerators are a suitable place for storage, but freezing of the solution should be avoided as this may alter the structure of the silver particles.


Storage duration

Colloidal silver has a long shelf life if stored properly. It can usually be stored for several months to a year. However, to ensure maximum effectiveness, it is recommended to use it within six months of opening the bottle. Regularly check the condition of the solution for changes in color or sediment, which may indicate a loss of quality.


5. Is colloidal silver safe? Risks and side effects


The safety of colloidal silver is of great importance, especially when it comes to prolonged or improper use. Although silver water has potential benefits, there are also significant risks and side effects to consider.


Risks and side effects



One of the most serious and visible side effects of colloidal silver use is argyria. Argyria is a condition in which the skin and mucous membranes take on a bluish-gray color due to an accumulation of silver particles in the tissues. This condition is irreversible and can have significant social and psychological consequences.



Taking large amounts of silver can be toxic to the body. Silver particles can accumulate in the kidneys, liver and other organs, which can cause damage. Animal studies have shown that high levels of silver can cause toxic effects on the kidneys and liver.


Interactions with medications

Colloidal silver can interact with certain medications and alter their effectiveness. For example, silver can reduce the absorption of certain antibiotics and other medications, which can compromise their medicinal value. People who are taking medications for chronic illnesses should be especially careful and consult a doctor before starting to use silver water.


Allergic reactions

Although rare, there is a possibility of allergic reactions to silver. Symptoms can include skin rashes, itching and in severe cases, anaphylaxis. Anyone who develops an allergic reaction after using silver water should stop use immediately and seek medical attention.


Gastrointestinal problems

Taking colloidal silver can cause gastrointestinal problems such as nausea, vomiting and diarrhea. These symptoms can result from irritation of the stomach lining by silver particles.


Use during pregnancy


Due to the lack of sufficient scientific research on the effects of colloidal silver on pregnant women and the fetus, experts recommend that pregnant women avoid its use. The potential risks to the fetus have not been well studied, and the safety of silver water consumption during pregnancy cannot be guaranteed. Some studies have shown that metal ions, including silver ions, can penetrate the placenta and reach the fetus, which can lead to toxic effects.


Use when breastfeeding


Use when breastfeeding


Similar to pregnancy, breastfeeding women should be careful with the use of colloidal silver. There is insufficient data on whether silver particles can pass into breast milk and affect the baby. It is therefore advisable to consult a doctor before use.


Use for pets


Colloidal silver is also used to treat pets, but here too there are significant risks. Veterinarians may recommend silver water to treat wounds or infections in animals, but it is important to follow exact dosages and instructions. Overuse of colloidal silver in pets can lead to the same side effects as in humans - argyria, kidney and liver toxicity, and allergic reactions.

While colloidal silver may have potential benefits, the risks and side effects should not be overlooked. It is important to consult a health care professional and use colloidal silver deliberately and with caution.


6. Expert opinions on colloidal silver and its use


Experts' opinions on colloidal silver are varied and often contradictory. While some medical and health experts support its use for specific applications, others warn of its risks and highlight the lack of sufficient scientific evidence of its effectiveness and safety.


Some physicians and naturopaths support the use of colloidal silver, especially for external application and disinfection. They point to the long history of silver's use as an antimicrobial agent and base this on studies that demonstrate its antimicrobial properties.


Proponents of alternative medicine

Proponents of alternative medicine often recommend colloidal silver to treat a variety of health problems, including skin infections, wounds, and inflammatory conditions. They claim that silver water can help strengthen the immune system and treat chronic infections.


Medical communities and regulatory agencies


Regulatory agencies such as the U.S. Food and Drug Administration ( FDA ) and the European Medicines Agency ( EMA ) warn against the use of colloidal silver as a dietary supplement or medical product without proven effectiveness and safety. They stress that many of the claims about the benefits of silver water are not supported by sufficient clinical studies.


Research and reviews


Research on colloidal silver is limited. While some laboratory studies have shown antimicrobial properties, clinical studies in humans are few and often have inconclusive results.


Clinical studies and publications


Some clinical studies have investigated the effects of colloidal silver on specific health conditions, such as skin infections and chronic wounds. However, results are often mixed and vary depending on the methodology and silver particle concentrations used.


Case studies and clinical observations

There are also case studies in medical literature that document both positive and negative effects of colloidal silver use. These reports emphasize the importance of an individualized approach and careful monitoring when using silver water in clinical practices.




Colloidal silver is a product with potential antimicrobial and anti-inflammatory properties, but its safety and effectiveness remain a subject of debate. The lack of standardized doses and clinical studies creates uncertainty, and risks, such as argyria and toxicity, should not be overlooked.


Regulatory bodies such as the FDA warn against its use, especially in pregnant women and pets.

Users should consult medical professionals before taking colloidal silver and follow recommended dosages to minimize the risks and maximize benefits. Careful and informed use is the key to the safety and effectiveness of colloidal silver.



1. NCCIH: Colloidal Silver: What You Need To Know (12.06.24)
2. MedicalNewsToday: Colloidal silver: Does it work and is it safe? (12.06.24)
3. Healthline: What Is Colloidal Silver, and Is It Safe? (12.06.24)
4. WebMD: Colloidal Silver: Is It Safe? (12.06.24)