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Essentials L-Theanine

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Essentials L-Theanine

L-THEANINE: RELAXED ALERTNESS, CLEAN AND SIMPLE

L-Theanine is a naturally occurring amino acid found primarily in green tea leaves that has been used for centuries for its uniquely calming yet clarifying properties.* It works by influencing key neurotransmitters involved in mood and focus, promoting what many describe as a state of relaxed alertness without drowsiness.* Bucked Up Essentials L-Theanine delivers a precise 200mg per capsule in a clean, minimal formula with zero unnecessary additives. 200 capsules, 200 servings per bottle. Gluten free, Non-GMO, and third party tested in a GMP compliant, FDA-registered facility. Whether you are stacking it with caffeine, winding down after a long day, or looking for a clean daily calm and focus support, this is the L-Theanine you can count on.*


200MG PER CAPSULE | 200 SERVINGS | GLUTEN FREE | NON-GMO | THIRD PARTY TESTED | GMP COMPLIANT

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Product Details

L-Theanine is a naturally occurring, non-protein amino acid found primarily in the leaves of the tea plant (Camellia sinensis), particularly green and black tea. It was first discovered in 1949 by Japanese scientists at Kyoto University who were studying the source of green tea's signature calming effect and its characteristic umami flavor. What makes L-Theanine unique among amino acids is that it does not build proteins in the human body. Instead, it crosses the blood-brain barrier and directly influences brain chemistry, interacting with key neurotransmitters including GABA, dopamine, and serotonin, all of which play a role in mood, focus, and stress response.*

The most notable effect people experience from L-Theanine is what many describe as relaxed alertness: a calm, composed mental state without sedation or fogginess.* It promotes alpha brainwave activity, the same brain state associated with meditation and a focused, clear mind.* This makes it a popular choice for anyone who wants to take the edge off stress, support a more balanced mood, stack it with caffeine for smoother energy, or simply wind down at the end of the day without feeling groggy.*

Bucked Up Essentials L-Theanine delivers a precise 200mg per capsule in a clean, minimal formula. No unnecessary fillers, no proprietary blends. 200 capsules per bottle, 200 servings, giving you over six months of daily support in a single bottle. Gluten free, Non-GMO, third party tested, and manufactured in a GMP compliant, FDA registered facility. The same brand transparency that goes into every Bucked Up performance product goes into every Bucked Up Essentials capsule.*

    Per 1 capsule serving:
  • L-Theanine (200mg) A naturally occurring non-protein amino acid sourced from green tea (Camellia sinensis). It crosses the blood-brain barrier and interacts with key neurotransmitters including GABA, dopamine, and serotonin to help support a calm, focused mental state without causing drowsiness.* It promotes alpha brainwave activity, associated with a relaxed yet alert state of mind,* and is widely used to help support everyday stress management,* calm focus,* sleep quality,* and smoother energy when paired with caffeine.*
  • Calm, Focused Alertness — 200mg pure L-Theanine per capsule helps you feel steady and clear without drowsiness*
  • Long Lasting Daily Support — 200 capsules per bottle provide over six months of consistent use, so you feel supported day after day
  • Relaxed, Meditative Focus — L-Theanine promotes alpha brainwave activity, giving you a settled yet alert mental state*
  • Everyday Stress Ease — supports a more balanced mood response, helping you feel less rattled by daily stress*
  • Restful Wind Down — supports sleep quality by promoting relaxation without acting as a sedative, so you feel calm rather than knocked out*
  • Smoother Energy Pairing — combine with caffeine for a more balanced lift, feeling energized without the jittery edge*
  • Neurotransmitter Support — L-Theanine influences GABA, dopamine, and serotonin, helping you feel more mentally balanced*
  • Clean Minimal Formula — only 4 total ingredients (L-Theanine, gelatin, vegetable magnesium stearate, silicon dioxide) so you know exactly what you're feeling and why
  • No Proprietary Blends — full label transparency with no unnecessary fillers or additives
  • Trusted Quality — gluten free, Non-GMO, and GMP manufactured in an FDA registered facility for peace of mind

As a dietary supplement, take 1 capsule daily with 8 oz of water, or as directed by a healthcare professional.

Can be taken any time of day. Many people take L-Theanine in the morning alongside caffeine, mid-day for stress support, or in the evening to help wind down.*

If pairing with caffeine, a 1:1 ratio (100mg caffeine to 100mg L-Theanine) or up to 1:2 ratio is commonly used for a balanced energy and focus experience.*

Store in a cool, dry place with the lid tightly closed. Keep out of reach of children.

Not for use by anyone under 18. Use only as directed. Consult your physician prior to use if you are pregnant or nursing, taking medications, or being treated for any medical condition.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

FAQs

L-Theanine is a naturally occurring non-protein amino acid found primarily in green tea leaves (Camellia sinensis) and certain mushrooms. It was first isolated in 1949 by Japanese scientists studying the calming properties of green tea. Unlike most amino acids, L-Theanine does not build proteins in the human body. Instead, it crosses the blood-brain barrier and interacts with key neurotransmitters including GABA, dopamine, and serotonin to support mood, focus, and stress response.*

L-Theanine promotes what most people describe as relaxed alertness: a calm, composed state of mind without drowsiness or sedation.* It does this by increasing alpha brainwave activity, the same brain state associated with meditation and a focused, clear mind,* and by supporting a healthy balance of key neurotransmitters involved in mood and stress response.* Common reasons people take L-Theanine include support for everyday stress management,* calm focus during demanding tasks,* smoother energy when paired with caffeine,* and sleep quality support when taken in the evening.*

Each capsule delivers 200mg of L-Theanine. Each bottle contains 200 capsules for 200 servings, giving you over six months of daily support in a single bottle.

Yes, and this is one of the most popular ways to use L-Theanine.* When paired with caffeine, L-Theanine may help take the edge off the stimulant effect, supporting smoother, more balanced energy and focus without the jitters or hard crash that can come with caffeine alone.* A common approach is a 1:1 ratio, such as 200mg caffeine with 200mg L-Theanine, though some people prefer a 1:2 ratio for a calmer experience.* This is also why L-Theanine is already included in all Bucked Up energy drink formulas.

No. L-Theanine is not a sedative and does not cause drowsiness.* What it does is promote a state of calm, relaxed alertness, meaning you can feel composed and clear-headed without feeling sleepy.* That said, because it supports relaxation and may help wind down the mind, many people find it useful in the evening before bed as part of a sleep support routine.*

L-Theanine is commonly used to support sleep quality by promoting relaxation and helping calm an active mind before bed.* It does not act as a sedative or sleep aid, but by supporting a more relaxed mental state it may help create the conditions for easier sleep onset and a more restful night.* Individual responses vary. If you have sleep concerns, consult your physician.*

No. Bucked Up Essentials L-Theanine is completely caffeine-free. The formula contains only L-Theanine, gelatin, vegetable magnesium stearate, and silicon dioxide. It can be taken on its own or stacked with your preferred caffeine source.*

This product uses gelatin capsules, which are animal-derived. It is not suitable for vegans or those avoiding gelatin. If you are looking for a plant-based capsule option, please check our full Bucked Up Essentials lineup for HPMC vegetable capsule alternatives.

L-Theanine is flexible enough to fit into any part of your day.* Many people take it in the morning alongside coffee or a pre-workout to smooth out the stimulant effect.* Others take it mid-day during high-stress work sessions to help support focus and composure.* And many use it in the evening to help wind down before bed.* Since it contains no caffeine and does not cause drowsiness, there is no wrong time of day.*

Bucked Up has built its reputation on transparent, clean formulas with no proprietary blends and no unnecessary fillers. Bucked Up Essentials L-Theanine is third party tested for purity and potency, manufactured in a GMP compliant, FDA registered facility, gluten free, and Non-GMO. You get exactly 200mg of L-Theanine per capsule, exactly what the label says, and nothing it does not. The same brand that athletes and performance-focused individuals trust for pre-workouts and energy drinks brings that same standard to every Essentials product.*

Bucked Up backs all supplement products with a 45-Day Money Back Guarantee. Reach out to customer support at cs@buckedup.com or call or text 1 (855) 205-2825 if it is not for you.

No. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.*

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