What’s inside this formula?
Puritan's Pride’s L-Theanine 200 mg is listed here in the theanine collection. This article looks at the selected 60 Rapid Release Capsule(s) · U.S. label record pack, then puts its ingredients into context.
L-Theanine 200 mg per 2 Capsule(s). U.S. label entered 2023-06-22; source retrieved 2026-11-02. Current formula and stock unconfirmed.
Check the original label ↗L-theanine is an amino acid found in tea and also sold as a separate supplement. Small human trials have examined stress-related symptoms and aspects of sleep. Tea, isolated theanine and theanine combined with caffeine are different interventions, so the complete formula matters when interpreting research or deciding what effect to expect.
Theanine across brands
Read the complete category guide for potential benefits, evidence limits, forms, label amounts, cautions and value comparisons.
Read the Theanine guide ↗The pack details above come from the dated NIH DSLD record, not a fresh manufacturer or retailer check. Ingredient research below does not establish the effects of this exact product or independently verify its contents.
Amounts, ingredients and precautions
NIH Dietary Supplement Label Database record 286164. Entered 2023-06-22; retrieved 2026-11-02. This is a U.S. label reference, not confirmation of the current formula, stock or availability in another country. Database inclusion is not NIH approval or independent testing.
Recorded serving: 2 Capsule(s). Servings per container: 30. Amounts below retain their own serving basis; they are not personal dose instructions. Indented rows are components and should not be added again to their parent total.
| Ingredient / nutrient | Amount | Per |
|---|---|---|
| L-Theanine | 200 mg | 2 Capsule(s) |
Other ingredients recorded
Cellulose; Dicalcium Phosphate; Gelatin; Magnesium Stearate; Magnesium Silicate; Silica
Recorded label precautions
- Pregnant or Nursing or Prescription Medications: WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
- All Other: Discontinue use and consult your doctor if any adverse reactions occur.
- Children: Keep out of reach of children.
- All Other: Do not use if seal under cap is broken or missing.
Open the original NIH DSLD label record ↗. Data: NIH Office of Dietary Supplements, DSLD, CC0 1.0. Read the current packaging before use.
The quantities in this record
L-Theanine 200 mg per 2 Capsule(s). The complete label table retains each amount’s own serving basis. Nested rows are components, not additional totals.
What accompanies the main ingredients
Cellulose; Dicalcium Phosphate; Gelatin; Magnesium Stearate; Magnesium Silicate; Silica These are recorded label details, not an independent test of composition or cross-contact.
Match the selected label and market
This profile describes Puritan's Pride L-Theanine 200 mg, 60 Rapid Release Capsule(s), in the U.S. label database. Entry date: 2023-06-22; record retrieved: 2026-11-02. DSLD lists this record as on-market, but that does not establish present stock, a current formula or availability in another country. Different packs and markets may differ.
What the evidence can and cannot establish
Amino acids have physiological roles, but a biological role is not proof that additional isolated supplementation helps a well-nourished person. The label and its marketing do not establish a clinical benefit for this formula. No exact-formula efficacy evidence was verified. Performance, sleep, immunity and disease claims must not be inferred from the ingredient list.
Whole-formula checks before comparing
The recorded formula includes Gelatin. It is not a vegan formula; other ingredients and recorded allergen cautions remain part of this profile. No certification is inferred. Recorded precautions: WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Keep out of reach of children. Do not use if seal under cap is broken or missing. Discuss use with a clinician if you have kidney disease, a prescribed protein restriction, use medicines, are pregnant or breastfeeding. These label quantities are not personal dosing advice.
Where might it be useful?
Possible stress-related effects
A small randomized study reported improvement in some stress-related measures after short-term L-theanine use.
Possible sleep-related effects
The same research explored sleep measures, providing preliminary findings rather than a guaranteed sleep benefit.
What the research can — and cannot — tell us
The cited trial was small and short, with results that need replication in broader populations. It does not establish treatment of anxiety disorders or chronic insomnia. Effects of a specific theanine preparation should not be assumed for every capsule, blend or drink, particularly when caffeine is added.
What deserves your attention?
Compare each declared amount with its own serving basis. Read the full recorded precautions below and verify the current pack before use. No personal dose or suitability is inferred.
Suitability comes before strength
Check blends for caffeine and other sleep or mood ingredients. Discuss persistent insomnia, anxiety, pregnancy or medicine use with a clinician. Avoid assuming that a supplement will be effective or appropriate simply because the ingredient occurs in tea.
Dietary details for this product
Animal-derived The recorded formula includes Gelatin. It is not a vegan formula; other ingredients and recorded allergen cautions remain part of this profile. No certification is inferred.
A dietary label and an allergy assessment answer different questions. Check every ingredient, the capsule or softgel materials and the allergen statement on the pack you receive. If you take medicines, have a health condition, are pregnant or are choosing for a child, discuss the full formula with a qualified clinician.
Make the comparison meaningful.
- Match the exact version.Look for Puritan's Pride · L-Theanine 200 mg and the 60 Rapid Release Capsule(s) · U.S. label record pack. A similar name or bottle can contain a different strength, blend or serving.
- Compare like with like.Read the serving size alongside the active ingredient amount. Capsule count, compound weight and total blend weight can describe different things. Use the label notes above to see what matters for this formula.
- Check the seller and final cost.Review seller identity, expiry, batch details and any Indian import information. Compare the final delivered price only after matching the formula. Prices and stock are checked on the retailer’s site.
Keep the label beside the decision.
Open the complete product profile for its source, dietary notes and available shopping destination.
Is this an endorsement or a medical recommendation?
No. This is an editorial guide to a selected product and its ingredient context. We have not independently tested this bottle or established a clinical benefit for this exact formula. A product’s inclusion is not a recommendation that everyone should take it.
Does Proof & Price earn from shopping links?
Some product-profile links are paid links and are labelled. As an Amazon Associate we earn from qualifying purchases. Manufacturer source links are provided for checking the label. Read our affiliate disclosure.
Read, check, decide.
Product label reviewed 2026-11-02. Ingredient context reviewed 2026-10-26. This article has not received independent clinical review. Packaging and formulas can change; the current pack takes precedence.
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