L-Theanine is an amino acid found naturally in the leaves of the tea plant (Camellia sinensis). It’s the reason tea feels calm and clear rather than wired, and, paired with caffeine, it turns raw energy into smooth, settled focus.
The calm in every cup of tea
L-Theanine is the quiet note found in every green tea leaf, the thing that makes tea feel calm and clear rather than jittery. It’s woven into centuries of tea culture in China and Japan, where the drink has always been as much about clarity as it is about energy.
What L-Theanine feels like
Alert, but unhurried. On its own it’s gently calming; paired with Guarana in Ritual Sharp, it turns raw energy into steady, easy focus, the wired edge taken off the caffeine.
Alert, but unhurried. The reason tea never feels like coffee.
What’s inside
L-Theanine is itself the active, a naturally occurring amino acid. It’s associated with alpha brain-wave activity, the relaxed-but-attentive state, and is well known for smoothing the sharper edges of caffeine.
Is L-Theanine safe?
L-Theanine is very well tolerated and is naturally present in the tea people have enjoyed for centuries.
A note on wellbeing
If you are pregnant or breastfeeding, speak to your doctor before use. L-Theanine is a botanical enjoyed for everyday wellbeing. It is not a medicine, and nothing here is intended to diagnose, treat, cure or prevent any condition.
Ritual Sharp
15ml sachetLime & ginger10 per cylinder
In Ritual Sharp, L-Theanine is the calm half of the equation, pairing with Guarana so the energy comes through as steady focus rather than a jittery rush, in a 15ml sachet that blooms into colour when it meets water.
Explore Ritual SharpL-Theanine, quickly
What does L-Theanine do?
L-Theanine is associated with a calm, clear, focused state. It’s best known for taking the jittery edge off caffeine, turning energy into steadier focus.
Does L-Theanine make you sleepy?
No. L-Theanine is calming rather than sedating, it’s linked to a relaxed-but-alert state, not drowsiness. It’s often taken during the day for focus.
Can you take L-Theanine with caffeine?
Yes, it’s a classic pairing. L-Theanine and caffeine together are valued for smooth, steady focus, which is exactly why Ritual Sharp combines L-Theanine with Guarana.
Is L-Theanine safe?
L-Theanine is very well tolerated and occurs naturally in tea. If you are pregnant or breastfeeding, speak to your doctor before use.
Where does L-Theanine come from?
L-Theanine is found in the leaves of the tea plant, Camellia sinensis, the same plant behind green, black and white tea, with roots in the tea cultures of China and Japan.
L-Theanine is one of eleven botanicals behind Social, Serene and Sharp. Also in Ritual Sharp: Guarana, Rhodiola Rosea. See all eleven botanicals →