If you haven’t heard of colloidal silver, you will soon enough if you’re on the lookout for alternative therapies to common health issues, such as a sinus infection or a cold.
Most health food stores and pharmacies stock several brands of colloidal silver, and, of course, you can find a find a vast amount of information about colloidal silver benefits on the Internet. Unfortunately, the information out there is confusing as many sources have conflicting opinions.
On one hand, you’ll run across thousands of personal testimonials about colloidal silver helping people with practically every disease you’ve heard about. You will also stumble upon some well-known health sites that warn consumers about safety concerns. (1) Usually, these sources quote a statement made by the FDA in 1999 claiming that there is no scientific evidence to support the use of colloidal silver. (2)
This type of information can confuse even the most savvy natural health enthusiast, which is why I want to lend a helping hand and provide some evidenced-based information to help you make an informed choice.
How Colloidal Silver Benefits Work
According to a report written by Richard Davies and Samuel Etris of The Silver Institute in a 1996, there are three primary ways that colloidal silver can help heal the body: (3)
- Catalytic Oxidation: Silver naturally holds onto oxygen molecules, which readily react with the sulfhydral (H) groups that surround bacterial and viruses. In turn, this helps block the life-preserving cellular process known as cellular respiration, which is defined as “the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.” (4)
- Reaction with Bacterial Cell Membranes: Silver ions can attach to bacteria cell membranes directly and produce the same respiration-blocking effect.
- Binding with DNA: Shown to literally enter bacteria DNA, up to 12% of silver has been detected in Pseudomonas aeruginosa. According to one source, “While it remains unclear exactly how the silver binds to the DNA without destroying the hydrogen bonds holding the lattice together, it nevertheless prevents the DNA from unwinding, an essential step for cellular replication to occur.” (5)
Top 8 Proven Colloidal Silver Benefits
By having a direct effect on cellular respiration, colloidal silver benefits the body in numerous ways. There are, however, eight proven healing properties that I consider to be particularly supported by the medical literature.
1. Antibacterial
First, colloidal silver’s ability to control antibiotic-resistant superbugs is astonishing. While employed at UCLA Medical School in the 1980s, Larry C. Ford, MD, documented over 650 different disease-causing pathogens that were destroyed in minutes when exposed to small amounts of silver. (6)
Colloidal silver, unlike its modern prescription antibiotic counterpart, simply doesn’t create resistance or immunity in the organisms that are killed by it. This point cannot be emphasized enough, especially in light of the Centers for Disease Control and Prevention (CDC) recently reporting that more than 2 million people in the U.S. suffer illness every year as a result of antibiotic-resistant infections and 23,000 die from these infections. (7)

2. Wound Care/Skin Health
Robert O. Becker, MD, says that colloidal silver stimulates healing in the skin and other soft tissues. (8) In a research article produced by Pharmacognosy Communications in 2012, it was specifically recommended that certain colloidal silver preparations should be considered for topical use to treat burns, thrush, periodontitis and other conditions. (9)
For instance, you can treat ringworm (Tinea capitis) at home with colloidal silver because it’s a potent anti-fungal. Caused by a fungus that lives on the top layer of the skin, ringworm presents as round, scaly patches. It’s contagious and spread by skin contact and by contaminated materials, such as clothing.
Colloidal silver benefits many skins conditions such as psoriasis and eczema as well. It’s soothing to scrapes and even repairs tissue damage from burns.
3. Pink Eye/Ear Infections 
Pink eye is an inflamed mucous membrane that covers the eyeball and eyelid lining, and it’s primarily caused by a bacterial or viral infection. Colloidal silver can be used for prompt action against this irritating and highly infectious virus and bacteria.
When applied on the infected eye, the tiny silver colloids pick up the infected cells by attracting them electromagnetically and sending them into the bloodstream to be eliminated.
Our modern prescription antibiotic drugs are designed to work against specific classes of bacteria, but ear infections may be caused by multiple classes of bacteria or can even be fungal.
In this case, the prescription antibiotic will be useless, whereas colloidal silver is effective regardless of what may be causing your infection.
4. Antiviral
Colloidal silver benefits can be experienced as an anti-viral for HIV/AIDS, pneumonia, herpes, shingles and warts. Dr. Martin Hum, from the Institute for Optimum Nutrition, lists colloidal silver as one of the natural remedies to stop viruses fast. (10)
Colloidal silver suffocates the virus and can even reduce the activity of the HIV virus in AIDS patients. There are also numerous anecdotal accounts of colloidal silver’s efficacy against the hepatitis C virus.
5. Anti-Inflammatory
Colloidal silver is also a fantastic anti-inflammatory remedy. Case in point: Researchers at the National Institutes of Health (NIH) studied the effects of inflammation after being treated by colloidal silver; they found that the inflamed skin of pigs treated with silver experienced near-normal skin after 72 hours, while other treatment groups not treated with silver remained inflamed. (11)
Research is beginning to reflect what many people have already known anecdotally for years — that colloidal silver can reduce swelling, speed healing, and boosts cell recovery!

6. Sinusitis
Widely used to control sinus infections, colloidal silver can benefit people as a nasal spray, according to a study published in the International Forum for Allergy and Rhinology last year. (14)
Specifically shown to kill Staph aureus, you can add a few drops of silver in a “neti pot” or by applying directly into your nasal cavity and letting it drain down your throat by tilting your head back.
Also, it’s important to point out that recent research indicates that hidden infections by pathogens could be a cause of respiratory inflammation associated with common allergies and asthma. Colloidal silver destroys Pseudomonas aeruginosa infections, which may be the reason why airborne allergy sufferers often find such dramatic relief from colloidal silver.
7. Cold/Flu
Some claim that colloidal silver helps prevent all types of flu, including swine flu, as well as the common cold. (15)
Few studies have been done to test this clinically, but in 2011 the NIH took 100 children under the age of 12 suffering from the common cold and nasal congestion and assigned them into two groups; the first group was treated with a solution of colloidal silver and beta glucan, and the second group with saline solution. Even though both groups benefited from the treatment, 90% of the people in the colloidal silver group completely recovered! (16)
8. Pneumonia 
Our modern drugs have become limited in their efficacy when it comes to fighting bronchitis or pneumonia. Typically, antibiotics are administered as the first line of defense, but when the pneumonia is viral, antibiotics won’t help in the least. The nice thing about colloidal silver is that it can help regardless of the pathogen.
Colloidal silver is a remarkable product to help fight against bronchitis and pneumonia when ingested internally, but an even more effective way to utilize it? Simply breathe it into your lungs.
This way, the silver directly contacts the germs residing in the lungs, which are causing bronchitis or pneumonia. It’s basically the same thing as using respiratory support, and it works speedily, clearing it up within a couple of days.
Now, the most effective method to get the colloidal silver into the lungs is to use a nebulizer. Generally, use one teaspoon approximately three times a day for 10 to 15 minutes.

What is Colloidal Silver?
Before the invention of the refrigerator, it was common practice to drop a silver coin into a container of milk as a preservative because silver was known to prevent the growth of algae, bacteria and other undesirable organisms.
Dating back to ancient times, silver was also a popular remedy to stop the spread of diseases. Its use as a natural antibiotic continued all the way until the 1940s, when modern antibiotics arrived.
Today, obviously, people don’t need to drop silver coins into their water to experience colloidal silver benefits! All you need to do is carefully take a few drops from a bottle that you buy at the store, which is:
“A solution of water containing nanometre sized particles of suspended silver. The total silver content is expressed as milligrams of silver per litre (mg/L) of water which is numerically the same as parts per million (ppm). The total silver content is divided into two forms of silver: ionic silver and silver particles. (3)
There are basically three types of products that are marketed as “colloidal silver” and these can be categorized as:
- Ionic silver solutions
- Silver protein
- True colloidal silver
Ionic silver –
Ionic silver solutions are products whose silver content primarily consists of silver ions. Although ionic silver is often marketed as colloidal silver, it’s not true colloidal silver. Because it’s the least expensive to produce, ionic silver is the most popular product in this category. The problem? It simply won’t produce the same benefits that true colloidal silver can.
Silver Protein –
In order to keep large silver particles suspended, silver protein-based products add gelatin. Silver protein is the second-most popular type of colloidal silver product on the market and can easily be made by adding water to silver protein powder. Again, it’s also often marketed and labeled as colloidal silver, but should not be confused for the real thing. Silver protein is less effective for human use, and you won’t experience the true colloidal silver benefits.
True Colloidal Silver –
Lastly, true silver colloids don’t contain any protein or other additives, as the vast majority of the silver content consists of nanometre-sized silver particles. (4)
Colloidal Silver Side Effects
Although the National Center for Complimentary and Integrative Health reports that colloidal silver may cause poor absorption of some drugs, there is limited research proving that side effects to colloidal silver use even exist. (17)
Nonetheless, you may come across many warnings about it causing an irreversible condition called argyria (when people turn blue). However, this is caused by misuse not of true colloidal silver, but through other cheaper products marketed as colloidal silver, such as ionic silver or silver protein.
One point to consider is that, because colloidal silver is such a potent antibacterial agent, you should be sure to supplement with probiotics during use to be sure that you maintain a proper balance of microflora.
Colloidal Dosage & Use
Colloidal silver needs to be applied differently for each condition. To experience colloidal silver benefits, it may be taken as follows, always keeping in mind to never use it for more than 14 days in a row.
- 2-5 drops applied directly to the skin
- 1 eyedropper taken orally for immune support
- 1-2 drops into eyes for pink eye
- 1-2 drops can help disinfect any wound or sore by applying onto a Band-Aid
- If prepared properly, it can be injected into a muscle, a cancerous tumor, or into the bloodstream
- 5 drops added into a neti pot or directly sprayed into the nose
- 5-10 drops can be applied vaginally or anally (18)
Colloidal silver is a mineral. Despite promoters’ claims, silver has no known function in the body and is not an essential mineral supplement. Colloidal silver products were once available as over-the-counter drug products, but in 1999, the U.S. Food and Drug Administration (FDA) ruled that these colloidal silver products were not considered safe or effective. Colloidal silver products marketed for medical purposes or promoted for unproven uses are now considered “misbranded” under the law without appropriate FDA approval as a new drug. There are currently no FDA-approved over-the-counter or prescription drugs containing silver that are taken by mouth. However, there are still colloidal silver products being sold as homeopathic remedies and dietary supplements.
There are many Internet ads for the parts of a generator that produces colloidal silver at home. People who produce colloidal silver at home will likely not be able to evaluate their product for purity or strength. There are many products that are far safer and more effective than colloidal silver.
Despite these concerns about safety and effectiveness, people still buy colloidal silver as a dietary supplement and use it for a wide range of ailments. Colloidal silver is used to treat infections due to yeast; bacteria (tuberculosis, Lyme disease, bubonic plague, pneumonia, leprosy, gonorrhea, syphilis, scarlet fever, stomach ulcers, cholera); parasites (ringworm, malaria); and viruses (HIV/AIDS, pneumonia, herpes, shingles, warts).
Colloidal silver is also used for lung conditions including emphysema and bronchitis; skin conditions including rosacea, cradle cap (atopic dermatitis), eczema, impetigo, and psoriasis; and inflammation (sometimes due to infection) of the bladder (cystitis), prostate (prostatitis), colon (colitis), nose (rhinitis), stomach (gastritis), tonsils (tonsillitis), appendix (appendicitis), and sinuses (sinusitis).
Other uses include treatment of cancer, diabetes, arthritis, lupus, chronic fatigue syndrome, leukemia, hay fever and other allergies, trench foot, and gum disease.
Colloidal silver is also used to prevent flu, H1N1 (swine) flu, and the common cold.
Some women take colloidal silver during pregnancy to aid the baby’s growth and health as well as the mother’s delivery and recovery.
Colloidal silver is applied directly to the skin for acne, burns, eye infections, fungal infections, throat infections, skin infections, and Staphylococcus infections.
How does it work?
Colloidal silver can kill certain germs by binding to and destroying proteins.
Possibly Ineffective for:
Eye infections. Some research shows that using colloidal silver eye drops in both eyes shortly after birth does not help prevent certain eye infections in newborns. Other research shows that applying a colloidal silver solution to the eye surface of people undergoing eye surgery does not prevent infections as well as applying povidone-iodine solution.
Insufficient Evidence for:
- Ear infections
- Emphysema
- Bronchitis
- Fungal infections
- Lyme disease
- Rosacea
- Sinus infections
- Stomach ulcers
- Yeast infections
- Chronic fatigue syndrome
- HIV/AIDS
- Tuberculosis
- Food poisoning
- Gum disease.
- Digestion.
- Preventing flu and colds.
- Other conditions.
Colloidal silver is LIKELY UNSAFE when taken by mouth, applied to the skin, or injected intravenously (by IV). The silver in colloidal silver products gets deposited in vital organs such as the skin, liver, spleen, kidney, muscle, and brain. This can lead to an irreversible bluish skin discoloration that first appears in the gums. It can also stimulate melanin production in skin, and areas exposed to the sun will become increasingly discolored.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Colloidal silver is LIKELY UNSAFE when taken by mouth, applied to the skin or injected intravenously (by IV). Increased silver levels in pregnant women have been linked to abnormal development of the ear, face, and neck in their babies. Colloidal silver supplements can also lead to silver accumulation in the body, which can lead to an irreversible bluish skin discoloration known as argyria. Silver can also be deposited in vital organs, where it does serious damage.
Moderate Interaction
Be cautious with this combination
- Antibiotics (Quinolone antibiotics) interacts with COLLOIDAL SILVER
Colloidal silver might decrease how much antibiotic the body absorbs. Taking colloidal silver along with antibiotics might decrease the effectiveness of some antibiotics.Some antibiotics that might interact with colloidal silver include ciprofloxacin (Cipro), enoxacin (Penetrex), norfloxacin (Chibroxin, Noroxin), sparfloxacin (Zagam), trovafloxacin (Trovan), and grepafloxacin (Raxar). - Antibiotics (Tetracycline antibiotics) interacts with COLLOIDAL SILVER
Colloidal silver might decrease how much tetracycline antibiotics the body can absorb. Taking colloidal silver with tetracycline antibiotics might decrease the effectiveness of tetracycline antibiotics. To avoid this interaction take colloidal silver two hours before or four hours after taking tetracyclines.Some tetracyclines include demeclocycline (Declomycin), minocycline (Minocin), and tetracycline (Achromycin). - Levothyroxine interacts with COLLOIDAL SILVER
Colloidal silver might decrease how much levothyroxine the body absorbs. Taking levothyroxine along with colloidal silver might decrease the effectiveness of thyroxine. - Penicillamine (Cuprimine, Depen) interacts with COLLOIDAL SILVER
Penicillamine is used for Wilson’s disease and rheumatoid arthritis. Colloidal silver might decrease how much penicillamine your body absorbs and decrease the effectiveness of penicillamine.
Dosing
The appropriate dose of colloidal silver depends on several factors such as the user’s age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for colloidal silver. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
What are the side effects of colloidal silver?
Quick Answer
The primary side effect of colloidal silver is argyria, which is an irreversible formation of gray and blue spots on the skin, states Healthline. Other side effects include kidney damage, seizures, liver disease and vision problems.
Full Answer
Although manufacturers of colloidal silver claim that this product boosts the immune system, treats cancer, and fights bacteria and viruses, the Food and Drug Administration does not recommend its use for any health condition, stresses Healthline. As of 2015, the purpose of colloidal silver in the body is not known, but it can build up in the body, interfering with medications such as penicillamine, thyroxine, tetracycline and quinolone antibiotics, advises Mayo Clinic.