The present invention relates to a method for obtaining a propylpropanethiosulfonic acid (PTSO) product or modulating an immune response in healthy or diseased individuals. The method includes selecting a compound based on PTSO for incorporation into a PTSO product. A compound based on PTSO is PTSO where the formula is R—SOa—S—R where “R” represents an n-propyl (—CH 2 —CH 2 —CH 3) group and “a” is 2. including. A compound based on PTSO is then incorporated into the PTSO product. [Selection] Figure 1本発明は、プロピルプロパンチオスルホン酸(PTSO)製品を得る又は健康な個体若しくは病気の個体における免疫応答を調節するための方法に関する。方法は、PTSO製品に組み込むためにPTSOに基づく化合物を選択することを含む。PTSOに基づく化合物は、式がR-SOa-S-R(式中、「R」は、n-プロピル(-CH2-CH2-CH3)基を表し、「a」は2である)であるPTSOを含む。次いで、PTSOに基づく化合物をPTSO製品に組み込む。【選択図】 図1