Suitable for vegetarians. Sugar and starch free. Solgar's L-Lysine Vegicaps are free of corn, yeast, wheat, soy and dairy products, and are formulated without the use of preservatives, artificial flavors or colors. L-Lysine is an essential amino acid. Long chains of molecularly bonded individual amino acids form protein. The body must first break these molecular (peptide) Bonds for amino acid absorption to take place. Solgar's free form amino acids are already in there simplest form (no peptide bonds) and can be readily absorbed into the bloodstream.