SpermidineLIFE capsule shells are made out of hypromellose, acetylated starch, calcium carbonate, and glycerol. These products help make the capsule more resistant to moisture. All of these additives are commonly used in the food industry and are completely harmless.
Although, we do not have FDA approval, given that the product originated in Austria and has only been accessible in the United States since August 2020, spermidineLIFE has received a "Novel Food Approval" from the Austrian Agency for Food Safety, "AGES," and European Food Safety Authority, "EFSA," for our product.