Protein silver: a natural antibacterial with a millennia-old history

Silver has been known since ancient times for its antimicrobial properties. The Greeks and Romans already used silver containers to keep water pure for longer. In the 20th century, science refined its use in medicine, creating protein silver, a stabilized form that combines effectiveness and safety.

What is protein silver?

Protein silver, also known as protein colloidal silver, is a compound in which microscopic silver particles are suspended in purified water and stabilized with plant-based proteins. This process allows for controlled silver release, enhancing its effectiveness and reducing potential toxicity risks. Thanks to its antibacterial, antifungal, and antiviral properties, protein silver has been a valuable ally for decades in treating infections and inflammations.

How does it work? The antimicrobial power of silver

Protein silver is a powerful antibacterial because it disrupts bacterial metabolism, preventing replication and leading to bacterial destruction. Its mechanism of action is based on the interaction between silver ions and microbial cell proteins: this interaction damages the bacteria’s cell walls, blocks respiration, and ultimately causes cell death. Unlike traditional antibiotics, protein silver does not induce bacterial resistance, making it a particularly interesting option in the fight against infections.

Uses of protein silver in medicine

Protein silver is used in various medical fields thanks to its versatility and safety.

Dermatology: skin care support
Thanks to its ability to counter bacterial growth, protein silver is used in the treatment of wounds, burns, and skin infections. It helps prevent infections, reduces inflammation, and promotes skin healing. It is often used in creams and topical solutions for treating dermatitis, skin ulcers, and bedsores.

Ophthalmology: eye protection
Protein silver is a common ingredient in eye drops designed to treat eye infections such as conjunctivitis and blepharitis. Its soothing and antibacterial properties also help reduce redness and irritation, protecting the eyes from external pathogens.

Otorhinolaryngology: ear and nasal drops and sprays
Protein silver is widely used in ENT (ear, nose, and throat) care, both in ear drops for treating bacterial ear infections and in nasal sprays for combating infectious rhinitis and sinusitis. These products help decongest the mucous membranes and eliminate pathogenic microorganisms, improving breathing and reducing inflammation symptoms.

Oral hygiene: antibacterial mouthwashes
Some antibacterial mouthwashes contain protein silver to fight gingivitis, stomatitis, and other oral infections. Its use helps reduce bacterial load in the mouth, preventing gum inflammation and improving oral hygiene.

Immune system support
In some preventive formulations, protein silver is used to strengthen the body’s natural defenses. While it does not replace a balanced diet and a healthy lifestyle, it can help protect the body from bacterial and viral infections.

Precautions and contraindications: when to avoid it?

Although protein silver is generally safe, it is important to use it with care.

Children: It is advisable to consult a doctor before using it on children under 12.

Pregnancy and breastfeeding: There is insufficient research on the safety of protein silver during these periods, so its use is not recommended.

Allergies: People allergic to silver should avoid it to prevent adverse reactions.

Drug interactions: Protein silver may interact with certain medications, so it is advisable to consult a doctor if you are undergoing treatment.

Argyria: People with this rare condition, caused by silver accumulation in the body and characterized by an irreversible gray-blue discoloration of the skin, should avoid protein silver entirely.

Non-medical uses: cosmetics and chemical industry

Cosmetics: treatments for impure skin
Thanks to its antibacterial properties, protein silver is used in creams and treatments for acne-prone or sensitive skin. It helps rebalance the skin microbiota, reducing the formation of impurities and promoting a healthier appearance.

Chemical industry: preservative and disinfectant
Protein silver is used in the chemical industry as a preservative to prevent microbial growth in products. Thanks to its antibacterial action, it is found in disinfectant solutions and industrial cleaners, ensuring longer shelf life and safer use.

An ancient remedy with a promising future
Protein silver represents a valuable asset in modern medicine thanks to its antibacterial properties and versatility. Although its use requires care, it can offer numerous health and wellness benefits. With ongoing scientific research, protein silver may still hold many surprises for the future of medicine and industry.