I found "Stick Collagen" released by the gelatin brand "Zerais". It is a single-use size powdered gelatin that is divided into small amounts that are easy to put in drinks and soups. In addition to gelatin, 20% of collagen peptide, which is easily absorbed by the body, is also included, so collagen can be ingested more efficiently.
It is said that if it is warmer than 50 degrees, you can sprinkle it directly, but does the taste not change even if you put it in a drink? I tried it with black coffee.
As a guide, use one stick collagen (2.25g (0.88oz)) per cup of coffee. When sprinkled, the white powder melts quickly, and when you stir it well and drink it, the taste is the same as usual coffee. When it cools down, the unique smell of gelatin becomes faint, but if you drink it while it is warm, you will not notice it.
In addition, you can add it to miso soup or mix it when cooking rice (1 bottle for 1 to 2 rice), which is very convenient to use when you come up with it. Of course, since it is gelatin, you can also make jelly.
The price is 300 yen (excluding tax) for 10 bottles. It looks good for offices and travel.