If you are taking silver for upper respiratory or UTI you want to be using 250 ppm or don’t bother. Probably the lesser dose for sinus is fine.
when it comes to colloidal silver, less is more effective.
Here is when it can get confusing to many consumers. Our culture’s prevailing belief is that more is better. But when it comes to silver, a smaller amount of total silver (PPM) can actually have more beneficial bio-active silver. This is because science has proven that the positive charge of bio-active silver is what offers the positive effect in the body. It’s easy to remember: Positive Charge = Positive Effect.
what really counts is not how many PPM the silver is but how many particles the silver has been divided into, That is why it isn’t necessary to have high PPM but it IS important to divide the silver as finely as possible. To see how small the silver can be divided by our colloidal silver generator, please look at the electron microscope photos. It is not better to try to take high PPM colloidal silver but to take CS that is properly made. If you think more silver is necessary, just take more of better made low PPM colloidal silver and you will be further ahead than if you took poorly made, high PPM colloidal silver.