Gelatin constitutes the shells of pharmaceutical capsules in order to make them easier to swallow. Gelatin is a translucent, colourless, brittle, nearly tasteless solid substance, extracted from the collagen inside animals' connective tissue. It has been commonly used as a gelling agent in food, pharmaceutical, photography, and cosmetic manufacturing.

L-Carnitine - Carnitine is a quat, quaternary ammonium cation, which is derived through biosynthesis of amino acids lysine and methionine. During the breakdown of stored fat in the lipids for purposes of generating additional metabolic energy, carnitine is needed to transport the fatty acids from the intracellular fluid to the mitochondria. The biologically active form of this stereoisomer is named l-carnitine. It is believed that l-carnitine has strong antioxidant effects and that it can strengthen the bone mass during the aging process. It is furthermore believed that l-carnitine promotes the glucose uptake and that it improves the male fertility in clinical trials. Concentrations of carnitine are found in highest levels in red meat and dairy products, but also in some seeds and pulses, as well as cereals and some fruits.

Magnesium Stearate is coommonly used as a filling agent in the manufacture of capsules and tablets, such as vitamins, the source of this ingredient is typically bovine. However, there is an increasing number of vegetarian options in which the product specifically indicates it contains magnesium stearate from vegetable sources.

Silica is silicon dioxide, a trace mineral found in bones, teeth, skin, eyes, glands and organs. It also helps keep skin elastic. Silica works with calcium to maintain bone strength.