non-nutrient/non-botanical
Theanine supplements
Half of the 1,602 theanine supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 90 mg to 200 mg (DSLD version 9.4.0, January 2026). The 134 products whose only supplement ingredient is theanine list a median of 200 mg.
- Products listing it
- 2,1331,602 print an amount; 530 list it inside a blend without an amount
- Median per serving
- 100 mgmiddle half 90 mg to 200 mg
How much theanine do supplements contain?
The median product lists 100 mg per serving. One in ten lists 50 mg or less, one in ten 248 mg or more. The amount printed most often is 200 mg (463 products).
Products by amount of theanine per serving
1,602 products, log scale; extreme 0.2% at each end left out of the drawing.
| Amount per serving | Products | For example |
|---|---|---|
| 200 mg | 463 | Theanine Calm Caps (Vitamin World); PureBalance Serotonin With 5-HTP, Relora, L-Theanine & Rhodiola (Quality Of Life Labs); WomenSense MoodFood Suntheanine & Whey Protein (Natural Factors) |
| 100 mg | 422 | Relora Serene (R-Garden); Om (Highland Laboratories); Energy Natural Citrus Burst (Shaklee) |
| 50 mg | 213 | Beauty Sleep (ResVitale); Natra Sleep (GNC Herbal Plus Formula); Sleep Soundly Advanced (GNC Preventive Nutrition) |
| 150 mg | 69 | Theanine (Natrol); Sleep Support (Pathway To Healing); Neurocore Blue Raspberry (MuscleTech Concentrated Series) |
| 300 mg | 52 | Pre-Workout Complex Blue Raspberry (Nutricost); Pre-Workout For Women Strawberry (Nutricost); Pre Extreme Unflavored (NutraBio) |
| 25 mg | 51 | Relaxation Support (Vitabase); Rockstar Relax Tropical Guava Flavor (Rockstar); MoodBoost (LES Labs) |
| 75 mg | 37 | Anarchy Watermelon (MuscleTech Performance Series); Anarchy Blue Raspberry (MuscleTech Performance Series); Kids Daily B-Centered (MegaFood) |
| 250 mg | 34 | L-Theanine (PureBulk.com); Sleep N Burn Cmplx (Faktrition); Suntheanine L-Theanine 125 mg (Natural Factors Stress-Relax) |
| 400 mg | 34 | L-Theanine 400 mg (OL Olympian Labs); Sleep Well (Healthy Choice Naturals); Alphagen Gummy Candy (Morphogen Nutrition) |
| 90 mg | 25 | NitroSurge Pre-Workout Blue Raspberry (Jacked Factory); Nitrosurge Blue Raspberry (Jacked Factory); Nitrosurge Black Lemon Lime (Jacked Factory JF) |
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most theanine?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- Calm/RechargeAllergy Research Group500 mg
- Sleep Juice Sweet TeaEA Enhnaced500 mg
- Fade Out GrapeRedcon1500 mg
- Pro-SomIntegrative Therapeutics500 mg
- Hibernate Peach MangoHuge Nutrition500 mg
- L-Theanine (500 mg)BulkSupplements.com500 mg
- ZmtSwolverine500 mg
- Sleep and Grow Sweet TeaEA500 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2012 list a median of 100 mg; those entered in 2025, 150 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2012 | 26 | 100 mg |
| 2013 | 43 | 100 mg |
| 2014 | 25 | 100 mg |
| 2015 | 40 | 62.5 mg |
| 2016 | 37 | 100 mg |
| 2017 | 67 | 150 mg |
| 2018 | 53 | 100 mg |
| 2019 | 61 | 100 mg |
| 2020 | 171 | 100 mg |
| 2021 | 161 | 100 mg |
| 2022 | 204 | 100 mg |
| 2023 | 192 | 100 mg |
| 2024 | 267 | 150 mg |
| 2025 | 241 | 150 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing theanine by DSLD product type
Brands listing it most: PS ProSupps (34), Jacked Factory (23), NutraBio (22), Alani Nu (22), OLLY (21), MuscleTech Performance Series (20), Natrol (18), Irwin Naturals (18), LifeSeasons (16), Jacked Factory JF (16).
Every product listing theanine
2,133 products, A to Z by name (page 17 of 43), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- L-TheanineBRI Nutrition · off the market200 mg
- L-TheanineDouglas Laboratories100 mg
- L-TheanineSmarterVitamins250 mg
- L-TheanineHigher Nature100 mg
- L-TheaninePure355 mg
- L-TheanineOrtho Molecular Products200 mg
- L-TheanineKlaire Labs100 mg
- L-TheanineHerbadiet100 mg
- L-TheaninePure Encapsulations400 mg
- L-TheanineXYMOGEN400 mg
- L-TheanineIntegrative Therapeutics200 mg
- L-TheanineNutraBio200 mg
- L-TheanineBulkSupplements.com200 mg
- L-TheanineEarthborn Elements355 mg
- L-TheanineMomentous200 mg
- L-TheanineNuMedica200 mg
- L-TheanineSuperSmart400 mg
- L-TheanineDr. Berg200 mg
- L-TheanineSuperiorLabs250 mg
- L-Theanine & CaffeineNutriana200 mg
- L-Theanine & CaffeineSR Sports Research200 mg
- L-Theanine (500 mg)BulkSupplements.com500 mg
- L-Theanine (Double Strength)Herbadiet200 mg
- L-Theanine + CaffeineSports Research200 mg
- L-Theanine 100 mgNewflower Farmers Markets100 mg
- L-Theanine 100 mgPhysioLogics · off the market100 mg
- L-Theanine 100 mgCountry Life · off the market100 mg
- L-Theanine 100 mgExchange Select100 mg
- L-Theanine 100 mgCHK Nutrition100 mg
- L-Theanine 100 mgThe Vitamin Shoppe100 mg
- L-Theanine 100 mgSeeking Health100 mg
- L-Theanine 100 mgPureFormulas100 mg
- L-Theanine 100 mgNOW100 mg
- L-Theanine 100 mgHealthy Origins100 mg
- L-Theanine 100 mgLake Avenue Nutrition100 mg
- L-Theanine 100 mgMetabolic Maintenance100 mg
- L-Theanine 100 mgMeijer100 mg
- L-Theanine 100 mgCalifornia Gold Nutrition100 mg
- L-Theanine 100 mgLife Extension100 mg
- L-Theanine 100 mg Mint FlavoredCountry Life100 mg
- L-Theanine 100 mg Smooth MeltsCountry Life · off the market100 mg
- L-Theanine 100 mg SuntheanineNOW · off the market100 mg
- L-Theanine 150 mgBluebonnet · off the market150 mg
- L-Theanine 150 mgSolgar150 mg
- L-Theanine 150 mgBIOVEA150 mg
- L-Theanine 150 mgDoctor's Best150 mg
- L-Theanine 200 mgGood 'N Natural · off the market200 mg
- L-Theanine 200 mgVitamin World200 mg
- L-Theanine 200 mgVitamer Laboratories200 mg
- L-Theanine 200 mgVitaCeutical Labs200 mg