Comment · Tue, October 19, 2021 · ND Owner
Why is EVERY lions mane brand Chinese
What they were answering
OPengiun · 1 points
What type of iodine does it have to be? I have some 10% povidone-iodine in the cabinet.
u/MisterYouAreSoDumb · ND Owner
Povidone-iodine is a complex of iodine and polyvinylpyrrolidone. The iodine is already complexed with a polymer, which will make it unable to cause the reaction with the starch in solution. You need a free iodine solution for it to work. The purple color happens because the iodine forms a complex with the starch in solution. You might see some color change with the povidone-iodine, but not nearly as strong as a free iodine solution.
This is what you would want: https://www.cvs.com/shop/cvs-health-iodine-tincture-usp-1-oz-prodid-1011941
That has free iodine, sodium iodide, ethanol, and water.