Clear and colorless products indicate maximum bioactivity, while yellow color is an indication of the presence of colloidal silver
particles, acting as inactive silver metal reservoirs.
Since the 1990s, colloidal silver
has been marketed as an alternative medicine, however its effectiveness for such uses has not been proven.
Obtained results suggested that AgNPs formed by Aspergillus niger showed antifungal property against pathogenic Candida species as indicated by the clear zone around the silver nanoparticle impregnated discs (Figure 6) and the diameter of the inhibition zone increases with increased concentration of colloidal silver
The Food and Drug Administration (FDA) view is that no products containing colloidal silver
are generally recognized as safe and effective, and the FDA has taken action against some manufacturers for making unsubstantiated claims about the supplement.
A reputable colloidal silver
is available from Amazon.
Tenders are invited for Gel Contains Colloidal Silver
32 Ppm Tube Of 15 - 25 Gm
Kaewamatawong, "An evaluation of acute toxicity of colloidal silver
nanoparticles," Journal of Veterinary Medical Science, vol.
The use of environmentally friendly or natural ingredients is another promotional message that can sell products, and colloidal silver
might be one ingredient to consider using.
Avoid taking these supplements, identified by the Consumers Union as being linked by clinical reports or case reports to serious side effects: aconite, bitter orange, chaparral, colloidal silver
, coltsfoot, comfrey, country mallow, germanium, greater celandine, kava, lobelia and yohimbe.
3) Colloidal silver
, in which silver particles down to the nanoscale are suspended in liquid, has been used for health and medical reasons since the early twentieth century and is now marketed as a dietary supplement and alternative medicine cure-all.
Prior to World War II the most powerful antibacterial and antifungal substance known to medicine was a colloidal silver
- small particles of silver suspended in a fluid.
Antimicrobial activity of colloidal silver
is well known since the 19th century.
A case of argyria after colloidal silver
In 2004, the Journal of Wound Care published a study in which three different colloidal silver
solutions had no effect on the growth of test organisms.
In the latest New Zealand Medical Journal Digest, doctors Shaun Holt and Sarah Jeffries and health psychologist Andrew Gilbey claimed colloidal silver
, deer velvet, arnica and rescue remedy are a "waste of time and money" and sometimes harmful.