Most, but not all. Stevia Select is a powdered 100% Stevia product. Expensive, but EXTREMELY concentrated. We have used it for years.
I fully agree, available at walmart and seems expensive until you use it. A very little goes a long way so it will last a lot longer than one might think. The 100% is in a small salt shaker kind of container, the mixture comes in a bag similar to sugar.
Processing Method:
Stevia Select uses a water extraction process to isolate steviol glycosides from stevia leaves, avoiding chemical solvents, bleaches, or alcohol purification. This is described as a “natural” and “clean” method, preserving the integrity of the extract.
The resulting powder is white and fine, indicating significant processing to remove impurities and bitter compounds found in crude or whole-leaf stevia. While some consumers note that green stevia powder (ground whole leaves) is the only “unprocessed” form, it is less sweet, has a bitter taste, and colors beverages green, making refined white powders like Stevia Select more practical for most uses.
Unfortunately, stevia select is sourced from China. The only one I have found that isn’t is BSL (bsweetbnatural), it’s sourced in North and South America.