About L-Theanine Capsules

Promotes healthy rest and relaxation*

Supplements cognitive and respiratory health*

Alleviates the jittery effects of caffeine

Tested for dosage and purity

L-Theanine is an incredibly popular supplement for its many health benefits, but for some, measuring out the correct dosage for each supplementation can be a real pain. That’s why Powder City now offers L-Theanine in encapsulated form. It’s the same great product, just easier to manage and consume!

What is L-Theanine?

L-Theanine It is similar in structure and has many of the same effects as Glutamate, a neurotransmitter in the brain that is involved in learning and memory.* [1]

Benefits of L-Theanine

L-Theanine provides many benefits when added to a dietary supplementation. At typical doses, L-Theanine has also been shown to promote cognition, alertness, and attention.* [2]

Evidence suggests that L-Theanine may have cellular health benefits, although this is still being investigated. [3, 4] Lastly, many individuals choose to supplement L-Theanine with a form of Caffeine, as this combination has been shown to supplement cognitive speed and accuracy and promote healthy attention while switching tasks.* [3]

L-Theanine Dosage

A typical dosage for L-Theanine is one 200mg capsule, 1x daily

Curated Reviews

“I really enjoy the mental boost of clarity and focus I get with L-Theanine and caffeine capsules, and the Theanine-only capsules really helps take the rough edge off of caffeine. I enjoy coffee, and since I don’t want to double-stack caffeine ingestion, the L-Theanine capsules are convenient to take 1-2 with coffee. It works well for me, though it’s more effective overall when I take it in conjunction with caffeine. No surprises there. This is my third order of L-Theanine caps, and I’ll continue to order it from Powder City.”- Trevor P