Silver Citrate is a preservative that's marketed as a "natural" alternative. Silver works by breaking down the cell membrane of the bacterium and denaturing the enzymes within, thus killing the cell. Silver citrate is a the salt of silver and citric acid, where silver exists in its ionic form. Silver citrate in the presence of citric acid (which, when sold as this preservative it's a blend of citric acid and silver citrate) is soluble in water.
Silver ions, as found in Silver Citrate are extremely potent anti-microbial agents. The problem is that silver ions cannot distinguish between "good" cells and "bad" cells.
Dissolved ionic silver is the most biologically active form of silver, is highly toxic to all living cells and bioaccumulative.
Downstream it sticks to fish gills, keeping them from breathing.
Contributes to antibiotic resistance.
Silver ions were found to accumulate of the brains and testes of the mammals (mice) studied.
Synthesis and antimicrobial activity of silver citrate complexes
Abstract
Formation of silver citrate/citric acid complexed solutions was investigated. Although, silver citrate is minimally soluble in water, it can successfully be dissolved in citric acid solutions...the diluted silver citrate/citric acid complexed solutions have exhibited very strong bacteriostatic and bactericidal activities.
Since this preservative contains silver, could it potentially cause Argyria?
When exposed to the skin it does not turn the skin black. I have applied it full strength to my skin and have even drank a small quantity of it. Being an RN and with years of ER and ICU experience I understand the dangers associated with silver poisoning, which is not possible with this product. It is a silver salt of citric acid and can't cause silver poisoning like colloidal silver. When it is absorbed into the skin it immediately becomes inert because it binds with the free sodium in our bodies and on our skin. It is then excreted out through the kidneys. Remember it is used at 0.1-0.3% so the amount absorbed even if you used a whole bottle of a product would be very tiny and it becomes inert upon contact with sodium. This is why it can be less effective in products with a really high salt content.
Silver is used by the medical profession and has been for years. It is instilled in newborns eyes to prevent gonorrhea and foley catheters are impregnated with it to prevent migration of germs and bacteria up the catheter and into the bladder which is sterile. We also use silver nitrate to cauterize nose bleeds. All of these are examples of silver being used in an effective and safe manner. Ingestion of colloidal silver is and has been controversial for a long time and has lead to heavy metal poisoning. These are not the same silver molecules and behave very differently in the body.
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