The açaí berry (pronounced ah-sah-ee) is small, round and dark purple. This berry, the fruit of the açaí palm (Euterpe Oleracea) which grows in the Amazon rainforest, is also referred to as a “super fruit” and “nature's perfect food” on account of its high percentage of antioxidants, nutrients, minerals and essential fatty acids.

28 BLACK contains 32 mg caffeine per 100 ml. This is roughly equivalent to two cups of espresso. 28 BLACK should be consumed in moderation and is not recommended for children or pregnant women.  Consumption associated with extreme physical activity or with existing health conditions, specifically heart and blood pressure abnormalities, is not advised. Caffeine levels can vary in certain countries.

28 BLACK intentionally does not include taurine, as the combination of taurine with caffeine can have detrimental effects, and increased consumption of products containing taurine can increase the risk of symptoms such as nervousness, restlessness, nausea and rapid heartbeat. In some cases, intensive use can result in cardiac arrhythmia and cramps. It should also be noted that it has not been proven that taurine improves performance.

Depending on the variety, the sugar content is 10 g to 14 g. Only 28 BLACK Açaí Zero, 28 BLACK Classic Zero and 28 BLACK Absolute Zero Guava-Passion Fruit contain 0 g of sugar.

28 BLACK Açaí Zero has 3 calories / 100 ml and is thus considered to be without calories. 28 BLACK Açaí Zero contains 0 g of sugar.

Steviol glycosides are extracted from the leaves of the Stevia rebaudiana plant (commonly referred to as 'stevia'). They are 200 to 300 times sweeter than sugar and nearly without calories. 

All 28 BLACK products are halal except 28 BLACK Absolute Zero Guava-Passion Fruit. Only 28 BLACK Açaí and 28 BLACK Açaí Zero are not halal in the USA due to country specific requirements.

All 28 BLACK products are vegan. Only 28 BLACK Açaí Zero in USA is not vegan due to country specific requirements. In Canada 28 BLACK does not contain any animal-derived ingredients, but not declared as vegan due to country specific requirements.