L-Theanine Supplement

$9.98 ~~$59.85~~ In stock

Category: Sleep

L-Theanine is an amino acid that is not commonly obtained through dietary sources. It is structurally similar to the neurotransmitters GABA and glutamate, and acts in a similar manner in the brain following oral ingestion.

L-Theanine has been found to support feelings of relaxation without causing sedation. It also supports healthy stress levels and attention span. These properties make it ideal for combining with caffeine as a way to attenuate the jitteriness some people experience from it. The combination of L-Theanine and Caffeine, for example, has been shown to support cognitive functions such as memory, focus, energy, and problem-solving ability.

Soy-Free, Gluten-Free, Non-GMO

Customer Reviews (4.6 / 5 · 5 reviews)

Andrew D. ★★★★★ Sep 1, 2026

Took one capsule with my evening tea and noticed my mind stopped racing within 30 minutes—the calm felt like a gentle wave instead of a sedative crash. The fact that it mimics GABA makes total sense to me now, since I woke up feeling rested rather than groggy.

Aurora ★★★★★ Sep 1, 2026

I’ve been taking one capsule about an hour before bed and it genuinely feels like my brain finally hits the brakes instead of racing all night. The way it mimics GABA seems to smooth out that anxious edge without making me groggy the next morning.

John ★★★★★ Aug 23, 2026

My sleep has been noticeably deeper since adding this to my evening routine, and I love that it's an amino acid rather than another synthetic compound. The effects feel smooth and natural, like my brain just settles down on its own without any grogginess the next morning.