One of the advantages of fish maw that we know is that it has a lot of collagen, which comes from the fish's swim bladder. Quoted from the website of the Fish Quarantine, Quality Control, and Fishery Product Safety Agency of the Ministry of Maritime Affairs and Fisheries, fish maw is one of the organs in fish, containing gases such as oxygen and has a changing pressure. This organ has important functions for fish, such as helping fish to float in the water, so that fish do not have to swim continuously to maintain their position in the water. The fish bubble will regulate the volume of the fish body adjusted to the specific gravity of water at a certain depth. In addition, the fish bubble is also one of the fish's tools to adapt. Adjusting the body shape, fish maw also varies in shape and size. The price also varies.

An IPB Aquatic Products Technologist, Dr. Wini Trilaksani, is interested in researching the parts of tuna that can be utilized for cosmetic products such as collagen serum. As is known, the ability of collagen as an important element in composing connective tissue is needed in maintaining the elasticity of the skin and face so as to prevent premature aging. Previously, Dr. Wini has researched collagen sources from various types of fish. These include the swimming bubble of cunang, catfish, grouper, manyung/jambal laut, jangilus, skipjack, lencam and the skin of tilapia, snapper and lencam.

Based on several studies that have been conducted, it is known that fish swimming bubbles can be processed into collagen. Swimming bubble or fish maw is part of fish by-products that are classified into fish internal organs and has the potential to be utilized into products so as to increase added value. The proportion of fish swimming bubbles based on research ranges from 0.21 - 0.53 percent which can be made into products. 

Not stopping with research on fish swimming bubbles or fish maw alone, Dr. Wini also conducted research on how to make collagen in fish swimming bubbles into beauty products.

According to her, several stages of management are needed to make it into a cosmetic product. This product is then named Mollus, as one of the beauty products that can be an alternative in taking care of the face. Mollus, which is made from fish swimming bubbles, can be an alternative solution as a source of collagen that can be used. Even in South Korea, the dominance of collagen products is also from marine products, because in South Korea there are lots of marine products.

Cosmetics that commonly use collagen are usually face creams, sunscreens, face masks, and many others. These cosmetics require fish maw because in terms of halal and cleanliness compared to taking collagen sources from other animals.