"Argyria is of significance only from the standpoint of cosmetic appearance."
Source: John Hill, Text: Colloidal Silver: A Literature Review: Medical Uses, Toxicology & Manufacture, Clear Springs Press, LLC, 2003, Third Edition
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What is Argyria:
Argyria (ISV from Greek: "ργυρος" argyros silver + -ia) is a condition caused by improper exposure to chemical forms of the
element silver, silver dust, or silver compounds. The most dramatic symptom of argyria is that the skin becomes blue
or bluish-grey colored. Argyria may be found as generalized argyria or local argyria. Argyrosis is the corresponding condition
related to the eye. The condition is believed to be permanent, but laser therapy has been used to treat it with satisfactory
cosmetic results. Source: Wikipedia
Argyria has resulted from the extreme misuse of very strong silver solutions usually consisting of silver salts, including silver nitrate, silver arsphenamine, silver chloride and possibly silver iodide. These products were sold until about 1975 under various labels with solutions containing levels of silver ranging from 5-30%. … Argyria has also been known to rarely result from the extreme misuse of some home-brew products (home made- usually small machine - battery produced products) where they are consumed daily in large quantities (8-24 ounces daily over years of time). Source: The Safety Of Using Silver Solutions And The Risk Of Argyria Risk of Argyria
Most cases of Argyria reported in the medical literature over the last 100 years involved chronic intravenous or intramuscular use of the silver preparations, most often involving a silver drug prescribed by physicians which in most cases contained silver nitrate. Other cases of Argyria reported in the medical literature involve application of silver preparations used for many months or years in the treatment of the eye or vagina for certain diseases. We could not locate a single case of orally consumed colloidal silver manufactured in the last 25 years causing Argyria in our review of the literature. This is probably due to the low levels of silver contained in such preparations, since only very small amounts of silver are needed for its antiseptic effect. Humans consume approximately 100 micrograms of silver every day in the diet.
Discussion: "Although the adverse effects of silver exposure have been known to man for almost 10 centuries, the dosage necessary to produce argyria is still not completely understood." Source: Akhil Wadhera MD and Max Fung MD, "Systemic argyria associated with ingestion of colloidal silver," Dermatology Online Journal, 11 (1): 12; 2005. [ Authors from Department of Dermatology, University of California Davis.] Superb report on Argyria
Information clarifying the argyria scare:
"Almost all of the relative handful of reported instances have involved one or more of the following: older silver products that contained as much as 10% or more silver (compared to mere parts per million in modern colloidal silver), silver nitrate, home made colloidal silver that was contaminated with salt, and silver that has been consumed continuously in very large quantities over a very long period of time.
In the case of Karason, he made his own ionic silver at home for almost two decades and for many years consumed a quart or more per day. I [Isaacs]daresay that any prescribed or over-the-counter medication whose recommended dosage was a couple of teaspoons a day would do far worse than turn a person blue if they drank a quart or more of it a year! For the sake of comparison, drinking a quart or more per day of colloidal silver would be like a person taking several bottles of aspirin a day, a practice that would be lethal in short order. Karason actually appears to enjoy his notoriety as the Papa Smurf blue man, and even though he sings the praises of how colloidal silver saved his life and the many ailments he believes it cured, the focus of attention is on his blue skin - a condition that is actually reversible with proper diet and herbal cleanses despite mainstream claims to the contrary.
What is also true about colloidal silver is that it is far safer, more effective and less expensive than the marginally effective and side effect laden mainstream antibiotics - and has mainstream and university studies proving it dating back to the early 1900`s." Isaacs Tony, "Colloidal Silver Has Mainstream Medicine Singing the Blues," Natural News, February 26, 2008. Issacs: Rebuttal that silver causes argyria
You should refer to testimonials for more information.