
Silver Proteinate, also known as Mild Silver Protein, is a colloidal silver compound formed through the interaction of silver ions with proteins (albumin). It is primarily used as an antiseptic for mucous membranes and is commonly incorporated into nasal decongestant formulations.
Silver Proteinate has also been historically used to prevent gonococcal ophthalmia (gonorrheal blindness) and other pathogenic bacterial and viral infections affecting the eyes of newborn infants.

CAS No.: 9008-42-8, 9015-51-4
Synonyms: Argyrol; Silver Nucleate; Mild Protargol; Protargol; Albumose Silver
| Chemical and Physical Properties | |
| State | Powder or Crystals |
| Color | Dark Brown to Very Dark Brown |
| Solubility | Slowly soluble in water, slightly soluble in methanol, and diethyl ether |
| pH | 8-9.5 |
Silver Protein is used in combination therapies for the treatment of bacterial rhinitis, catarrh, and laryngitis.
It is used in the disinfection of mucous membranes and also helps to reduce inflammatory reactions caused by bacteria in mucous membranes.
Silver Proteinate is used in formulations of nasal drops and topical antiseptic preparations.
Common side effects associated with Silver Proteinate
| Pictograms : | Not Available |
| Hazard Statements : | Not Available |
| Precautionary statements : | Not Available |
Silver Proteinate, also known as Mild Silver Protein, is a colloidal silver compound formed through the interaction of silver ions with proteins (albumin). It is primarily used as an antiseptic for mucous membranes and is commonly incorporated into nasal decongestant formulations.
Silver Proteinate has also been historically used to prevent gonococcal ophthalmia (gonorrheal blindness) and other pathogenic bacterial and viral infections affecting the eyes of newborn infants.

CAS No.: 9008-42-8, 9015-51-4
Synonyms: Argyrol; Silver Nucleate; Mild Protargol; Protargol; Albumose Silver
| Chemical and Physical Properties | |
| State | Powder or Crystals |
| Color | Dark Brown to Very Dark Brown |
| Solubility | Slowly soluble in water, slightly soluble in methanol, and diethyl ether |
| pH | 8-9.5 |
Silver Protein is used in combination therapies for the treatment of bacterial rhinitis, catarrh, and laryngitis.
It is used in the disinfection of mucous membranes and also helps to reduce inflammatory reactions caused by bacteria in mucous membranes.
Silver Proteinate is used in formulations of nasal drops and topical antiseptic preparations.
Common side effects associated with Silver Proteinate
| Pictograms : | Not Available |
| Hazard Statements : | Not Available |
| Precautionary statements : | Not Available |
Silver (Ag) refers to the elemental metal, whereas colloidal silver is a liquid suspension of microscopic silver particles dispersed in a liquid medium, typically water, and is added to formulations for its antibacterial and antiseptic properties.
Silver Protein (also known as Mild Silver Protein or Protargol) is a protein-bound silver complex used primarily for its antimicrobial and astringent properties.
Mild Silver Protein (MSP) is most commonly known as Argyrol and its other synonyms include Silver Proteinate, Protargol, Silvol, Argyn, Cargentos, and Olargentum.
Mild silver is generally not considered harmful to the sinuses, and it been used in nasal drops for rhinitis and mucosal infections due to its antimicrobial and astringent properties. However, improper or prolonged use may cause irritation.
Silver is a powerful antimicrobial agent that helps to control microbial growth and reduce infection risk. However, excessive or improper use may lead to adverse effects