Decision summary
L-Theanine 200 mg Suntheanine Capsules
Suntheanine capsule comparison
Product guide
L-Theanine 200 mg Suntheanine Capsules is a L-Theanine product from Source Naturals. Start with ingredients, dose, safety cautions, price context, and whether it fits Stress, Sleep, Brain Health.
Decision summary
Suntheanine capsule comparison
Related question path
Start with the question that brought you here, then check the ingredient, the related concern, and the product list.
Screen sedatives, antidepressants, blood pressure medicines, and other relevant medications before use.
Pregnancy, breastfeeding, chronic conditions, and unusual symptoms need professional guidance.
Check capsule, softgel, coconut, gelatin, soy, flavor, and excipient details on the current label.
Ask a healthcare professional before use during pregnancy or breastfeeding.
Drowsiness, digestive discomfort, or unexpected relaxation effects can occur depending on user context.
Check label serving and total intake
Optional values-based signals. Unknown means Supppedia has not verified the label or source yet.
Unknown / Claimed
Unknown
Unknown
Unknown
Unknown
Unknown
Use this final check before choosing this product.
Confirm serving size, active amount, added ingredients, and warning label.
DSLD label warns against use in pregnancy/breastfeeding and with some antidepressants unless supervised.
Checked 2026-08-05; confidence: Structured Source Review.
Look for tolerability and repeat-use signals when available.
20-second check-in
Optional: share three quick signals after this page has helped you decide.
This product is connected to Stress, Sleep, Brain Health. Benefits are shown as possible use cases. Results and fit can vary.
Start with the product label, then connect the ingredient to evidence and safety context.
Label serving size: 1 capsule. Compare this with ingredient-level dosage ranges and reported dosage patterns.
Evidence strength is currently marked as mixed. Use ingredient-level evidence first and avoid assuming product-specific clinical proof unless available.
Brand, Product Name, Category, Dosage Form, Serving Size, Ingredient Links, Dose Or Active Amount, Source Url
Price Per Serving, Availability, Servings Per Container, Label Warnings, Testing Claims
Product labels, warnings, availability, and prices can change. Recheck the current product label before buying.
Suggest an updateOpen a focused guide when you need deeper context on benefits, side effects, dosage, timing, research, or fit.