SuppHelper
search
Home›Supplements›Amino Acid›Theanine›Suntheanine L-Theanine 100 mg Natural Factors Stress-Relax
Product Image

Suntheanine L-Theanine 100 mg

Natural Factors Stress-Relax
4.7
★ ★ ★ ★ ★
(3614 ratings)
Theanine 200 mg
Product Image
Score 72

A Natural Factors Stress-Relax tablet featuring 200mg of Suntheanine L-Theanine, offering stress relief and focus, but with a misleading product name regarding its dosage.

Quantity: 60 Tablet(s) • (30 servings)
Goals:
flag Mood Support
flag Cognitive Support
flag Sleep Support
flag Energy
flag Stress Relief

leaderboard Score 72

A Natural Factors Stress-Relax tablet featuring 200mg of Suntheanine L-Theanine, offering stress relief and focus, but with a misleading product name regarding its dosage.

insightsAnalysis

Natural Factors Stress-Relax offers a tablet form of Suntheanine L-Theanine, providing 200mg per serving. This product aims to deliver the calming and focus-enhancing benefits of a branded L-Theanine, despite a discrepancy in its stated dosage on the product name.

Suntheanine is a recognized form of L-Theanine, often sought for its quality. This tablet is designed for individuals seeking to manage stress, support mental clarity, and achieve a state of relaxed alertness. With substantial customer feedback, it represents a popular choice, though its higher price per serving and dosage inconsistency are points to note.

thumb_upPros
  • Contains Suntheanine, a branded form of L-Theanine.
  • Provides a good 200mg dose per serving (according to ingredients list).
  • High number of customer reviews.
  • Tablet form is generally convenient.
  • "Stress-Relax" branding aligns with L-Theanine benefits.
thumb_downCons
  • Product name states "100 mg" while ingredients list "200 mg," creating confusion.
  • High price per serving.
  • Only 30 servings per bottle.
  • Contains calories and carbohydrates.
warningWarnings
  • Pay close attention to the ingredient label for the actual dosage, as the product name is misleading.
  • Consult a healthcare professional if you are pregnant, nursing, or have a medical condition.
  • Some individuals may experience mild stomach upset when taking L-Theanine.
flagReport analysis
$18.87($0.62 per serving)
Pure Formulas
$ 18.87
iHerb
$ 18.87
Vitacost
$ 18.87
Amazon
$ 18.87
flagReport prices

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrates
4 Gram(s)
Suntheanine L-Theanine
200 mg
grain_off Gluten Free person Adults 18–50 eco Vegan free_breakfast Dairy Free eco Vegetarian
flagReport overview

Categories

Theanine 78
As a Suntheanine product with a good dose, backed by extensive customer reviews, it is a decent option in the Theanine collection, though the dosage discrepancy is a notable drawback.
storefront View products

Goals

flag Mood Support 88
The 200mg dose of Suntheanine is well-suited to help foster a tranquil mood and support emotional balance.
flag Stress Relief 88
The included Suntheanine at this dosage is commonly used to help alleviate feelings of occasional stress, promoting a calmer disposition.
flag Cognitive Support 83
Suntheanine can contribute to a state of focused alertness, which may aid in concentration and mental performance without overstimulation.
inventory_2Recommended products
90 Value

L-Theanine 200 mg Double Strength

Swanson
4.7
★★★★★
(472 ratings)
Delivers 200mg of Suntheanine L-Theanine at a lower price per serving ($0.26 vs $0.30), offering comparable quality and excellent value for a patented form.
Other sellers (1)
92 Value

L-Theanine 200 mg

California Gold Nutrition
4.7
★★★★★
(15182 ratings)
Provides a high 200mg L-Theanine dose at an exceptionally low price ($0.16/serving), offering outstanding value for a pure L-Theanine supplement.
Other sellers (0)
95 Value

Double Strength L-Theanine 200 mg

NOW
4.7
★★★★★
(41457 ratings)
Offers 200mg L-Theanine plus Inositol for an extremely competitive price ($0.18/serving) from a highly trusted brand, representing superior overall value.
Other sellers (5)
92 Performance

Suntheanine L-Theanine 125 mg

Natural Factors Stress-Relax
4.7
★★★★★
(1410 ratings)
This alternative offers a higher 250mg dose of the same premium Suntheanine L-Theanine, potentially providing stronger effects for those seeking maximum impact.
Other sellers (2)
94 Performance

Theanine

Thorne
4.7
★★★★★
(1300 ratings)
Utilizes 200mg of Suntheanine from Thorne, a brand renowned for its exceptionally high purity and rigorous third-party testing, making it a top-tier quality choice.
Other sellers (3)
89 Performance

Enhanced Stress Relief

Life Extension
4.5
★★★★★
(927 ratings)
Combines 200mg L-Theanine with 300mg Lemon Balm extract, offering a synergistic approach to stress relief and mood support, potentially enhancing the calming effects.
Other sellers (3)
90 Budget

L-Theanine 200 mg

Advance Physician Formulas
4.7
★★★★★
(619 ratings)
Provides 200mg of L-Theanine at a much lower price ($0.15/serving vs $0.30), offering a cost-effective alternative if the patented form is not a strict preference.
Other sellers (1)
92 Budget

L-Theanine 200 mg

California Gold Nutrition
4.7
★★★★★
(15182 ratings)
Offers 200mg of L-Theanine for $0.16/serving, a significantly cheaper option with a high review count, though not using a patented form.
Other sellers (0)
95 Budget

Double Strength L-Theanine 200 mg

NOW
4.7
★★★★★
(41457 ratings)
At $0.18/serving for 200mg L-Theanine plus Inositol, it's considerably cheaper and offers excellent overall value, though it doesn't feature Suntheanine.
Other sellers (5)
90 Value

L-Theanine 200 mg Double Strength

Swanson
4.7
★★★★★
(472 ratings)
Delivers 200mg of Suntheanine L-Theanine at a lower price per serving ($0.26 vs $0.30), offering comparable quality and excellent value for a patented form.
Other sellers (1)
92 Value

L-Theanine 200 mg

California Gold Nutrition
4.7
★★★★★
(15182 ratings)
Provides a high 200mg L-Theanine dose at an exceptionally low price ($0.16/serving), offering outstanding value for a pure L-Theanine supplement.
Other sellers (0)
95 Value

Double Strength L-Theanine 200 mg

NOW
4.7
★★★★★
(41457 ratings)
Offers 200mg L-Theanine plus Inositol for an extremely competitive price ($0.18/serving) from a highly trusted brand, representing superior overall value.
Other sellers (5)
92 Performance

Suntheanine L-Theanine 125 mg

Natural Factors Stress-Relax
4.7
★★★★★
(1410 ratings)
This alternative offers a higher 250mg dose of the same premium Suntheanine L-Theanine, potentially providing stronger effects for those seeking maximum impact.
Other sellers (2)
94 Performance

Theanine

Thorne
4.7
★★★★★
(1300 ratings)
Utilizes 200mg of Suntheanine from Thorne, a brand renowned for its exceptionally high purity and rigorous third-party testing, making it a top-tier quality choice.
Other sellers (3)
89 Performance

Enhanced Stress Relief

Life Extension
4.5
★★★★★
(927 ratings)
Combines 200mg L-Theanine with 300mg Lemon Balm extract, offering a synergistic approach to stress relief and mood support, potentially enhancing the calming effects.
Other sellers (3)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop

© 2025 SuppHelper. All rights reserved.