... . L-Histidine (free base) . Hydroxy-L-Proline . L-Isoleucine . L-Leucine . L-Lysine•HCl . L-Methionine . L-Phenylalanine . L-Proline . L-Serine . L-Threonine . L-Tryptophan . L-Tyrosine•2Na•...