There are a lot of discussions today on the theme of chemical additives in cigarettes. But we are interested in byproducts added to cigarettes rather than in chemical additives, which are discussed so much today. >So, byproducts are the products remaining after tobacco processing. They were thrown away in the past unlike today, when they are treated in a special way and added these ones into the cigarettes. Hence, these are hard central stems of tobacco plant, crumbs that appear as a result of tobacco cutting, tobacco powder and other waste products.
How can natural tobacco be distinguish from unnatural tobacco? It is practically impossible to differentiate them by taste, color, smell and even by touch. You may be guided only by producers’ inscriptions on cigarette packs like "no additive", "additive-free" or "natural."

The Santa Fe Natural Tobacco Company is the famous natural tobacco manufacturer, best known for its production of the Natural American Spirit cigarette brand. However, "Natural American Spirit" brand cigarettes are currently owned by (since 2002) the RJ Reynolds Tobacco Company, Inc.
The products of Santa Fe Natural Tobacco Company are marketed as being "100% Additive-Free Tobacco.”