Their site just says due to 'personal' reasons, and they recommend another product. I haven't bought colloidal silver in years, last brand I was using was Mesosilver.
NutraSilver has gone out of business. This decision was made for personal reasons. Unfortunately, NutraSilver is no longer available for purchase.
For those who have benefitted from our product we recommend checking out www.ultrasilver.com. They offer a colloidal silver product that meets the high quality standards you’ve come to expect from NutraSilver.
It has been our honor to serve you and we hope that you have found our product beneficial.
Customer service will remain open until June 23rd, 2018 and all 60-day first-order guarantee claims will be honored. NutraSilver customer service may be reached at 888-240-2326.
We thank you for your business and wish you the very best in health.