Citric acid is one of the most commonly used types in thick drinks and is an apothecary version of this. They are used in a variety of ways and one can also use this to add a little percent of thick drinks to your customers' drink. It comes in a variety of colors and sizes, and it is a great addition to any drink in your customers' lives.
Citric acid is available at Alibaba.com and is designed to keep your packaged foods and drinks fresh over a long period. You can also use it to keep some variety of foods and drinks slightly.