Ingredients / Caffeine & caffeine sources

Green tea extract

Also listed as: green tea leaf extract, matcha

What it is

An extract of tea leaves. It naturally contains caffeine, catechins (plant antioxidants such as EGCG) and L-theanine.

Why it is in energy drinks

Marketed as a gentler, plant-based source of caffeine.

Worth knowing

Some labels say the caffeine comes "from green tea". It still counts toward the can's caffeine.

General information, not medical advice. We read what the label lists and don't test what an ingredient does.