To improve oral digestion efficiency by simultaneously digesting enzymes such as vitamins and minerals specifically relating to decomposition, absorption and resynthesis of collagen to improve efficiency and rate of chemical reactions.

As the vitamin group, vitamin B1 having effects as a coenzyme activating enzymes relating to metabolism of the whole body and niacin specifically activating metabolism of proteins are combined. As the mineral group, zinc of an indispensable metallic element of collagenase is combined. As the raw material, shellfishes containing large amounts of minerals and good proteins are preferable.