100% L-Theanine Powder

Theanine is a naturally occurring amino acid that can be found in small quantities in a variety of foods. Getting it from your diet alone can be expensive and time-consuming, making our powder a convenient way to stay topped up.

Performance Advisory Board

Bringing together world-class scientists, doctors, and athletes to shape innovation at Myprotein — combining cutting-edge research with real-world testing to create solutions that actually deliver, for everybody. Find out more about our Performance Advisory Board.