Double Wood L-Theanine

L-Theanine supports feelings of relaxation without causing sedation. It also supports healthy stress levels and attention span.

Shipping calculated at checkout.
Free Shipping On Orders Over $65

Spend $65 or more on your favorite Best In Wellness products and receive FREE standard shipping (domestic United States retail orders only). Some exclusions apply.


Double Wood L-Theanine Benefits

  • PROMOTES RELAXATION WITHOUT SEDATION - Studies have shown that L-Theanine promotes feelings of relaxation without having any sedative properties.*
  • SUPPORTS HEALTHY STRESS LEVELS - L-Theanine helps support healthy stress levels as well as a healthy mood.*
  • SUPPORTS HEALTHY SLEEP QUALITY - L-Theanine has been shown to support sleep quality.*


MADE IN THE USA - L-Theanine is manufactured right here in the USA and is 3rd-party tested for purity and potency.  

Soy-Free, Gluten-Free, and Non-GMO.


What is L-Theanine?

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.*

Recommended Dosage

The typically recommended dosage of L-Theanine is 100 – 200 mg, although when combined with Caffeine a dosage of 200 mg is more common. There is evidence that exceeding a dosage of 200 mg has little additional benefit, as when more than 200 mg is taken the excess is used by the body as a raw material for protein production. While the standard 200 mg dosage can be exceeded without much risk of adverse side effects, it is generally a waste of money and is not recommended.


L-Theanine Side Effects

L-Theanine is very well tolerated by the body and is not toxic. Adverse side effects are rare, but include headaches, dizziness, and mild gastrointestinal discomfort. One other potential side effect of L-Theanine is a temporary reduction in blood pressure. While this is normally a beneficial side effect, caution should be used when combining L-Theanine with prescription medications that also reduce blood pressure. Please consult your physician before taking L-Theanine.


*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. Keep out of reach of children. Consult a physician if you are pregnant or nursing; have or had a medical condition, or are taking prescription drugs. If you have any adverse effects to the product, stop taking the product immediately and consult your physician.