Energy drink, polarised light micrograph. Energy drinks are designed to provide a quick boost of energy through the use of stimulants such as caffeine, taurine, and guarana. When viewed under the microscope, the crystals in energy drinks can provide interesting insights into the composition and structure of these beverages. Energy drink crystals typically appear as small, angular or irregularly shaped particles with a shiny, translucent or transparent appearance. The crystals can vary in colour depending on the composition of the drink, with some energy drinks containing artificial colours to enhance their visual appeal. In addition to the stimulant compounds, energy drink crystals can contain a range of other ingredients, such as vitamins, minerals, and herbal extracts. Some of these ingredients may be present in crystalline form, such as vitamin C, which can form large, needle-like crystals that can be easily visualised under the microscope.