Staying Younger looking and Optimizing your Health are the biggest requests clients have from us. That’s our responsibility. Your job is to find the best possible product available with No Additives what so ever. Check the labels for Product of USA. Clean and Pure, Organic Sulfur OS is sourced from an FDA approved facility with GMP certification. That is what you need to know before ever purchasing online or through stores. Do not get fooled into buying cheap pet grade MSM or facsimiles from India and China, not for human consumption! We are one of the oldest companies supplying our clients with the attention they deserve. We have made Organic Sulfur an affordable solution to the maintenance of good health and wellness.