- Serving Size
- Professional Grade
For soothing relaxation that doesn’t make you drowsy, Calming L-theanine is made with L-theanine, an amino acid rich with benefits like increased focus, better immunity, and blood-pressure management. Help tame your anxiety and find calm with every Parsley doctor’s top-recommended stress management supplement.
Found primarily in green and black tea and some mushrooms, L-theanine helps to ease anxiety, stress, and even insomnia. While not snooze-inducing, research indicates that L-theanine could also be beneficial for a good night’s sleep.
- Promotes concentration and relaxation without drowsiness
- Supports nervous system health
- Supports blood pressure and liver health
- Supports antioxidant and detoxification mechanisms
Contains L-theanine, HPMC (capsule), microcrystalline cellulose, vegetable stearic acid, vegetable magnesium stearate, and silica.
Does not contain wheat, gluten, corn, soy, dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, or artificial preservatives.
1-2 capsules (may take up to 2 capsules 3 times daily), or as recommended by your healthcare practitioner.
Can be taken with or without food in the morning and evening. You may also take it when you’re feeling stressed, or right before bedtime to help with relaxation.
What do we mean when we say that Parsley Health supplements are “professional grade”?
Like prescription drugs, supplements are powerful tools whose safety, quality, effectiveness, and relevance should be taken seriously.
At Parsley, our doctors are trained in prescribing high-quality supplements that are indicated to work for the conditions they support, like treating microbial imbalances in the gut, addressing nutrient deficiencies, or balancing blood sugar. We are highly selective and cautious in prescribing supplements, which are formulated with vitamins, minerals, nutrients, and botanicals in their most digestible and effective form. We often find they are more effective than conventional drug therapies alone.
We call Parsley-branded supplements “professional grade” because they’re third-party tested for quality and purity by reliable NSF- or USP-certified manufacturers in the U.S. They are manufactured at cGMP-compliant facilities, meaning the facility must meet requirements set forth by the FDA.
* 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.
3rd-party tested for purity
Sourced from independent manufacturers certified by the NSF and USP, nonprofit quality-control organizations
Subjected to the same rigorous testing as pharmaceutical drugs, then approved by Parsley’s leading clinicians
USA-made for traceability
By facilities that meet manufacturing standards enforced by the FDA
- Nicole D.Verified BuyerRated 5 out of 5 starsRelaxing
Have been taking this in the morning and it adds a real sense of calm to the day
- Nathalie T.Verified BuyerRated 5 out of 5 starshelps me calm
helps me sleep so well. love it.
- Asela B.Verified BuyerRated 5 out of 5 starsL-theanine
Great product thank you so much! when is my next shipment I’m running low!
- Anita B.Verified BuyerRated 5 out of 5 starsFinally!
Now sleeping well for the first time in years. Also recommended this to several friends.
- Rebecca B.Verified BuyerRated 5 out of 5 starsWorks well!
Helps calm my mind and prepare for rest.