Reaction mixture of N-lauroyl-L-glutamate and L-lysine followed by neutralizing by NaOH for use as surfactants; Amino acid surfactants for use as raw materials in the manufacture of cosmetics and detergent; Surfactants for use as raw materials in the manufacture of cosmetics and detergent; Emulsifiers and dispersants for use in the manufacture of ink, coating materials and chemical materials; Humectants