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Kyolic Nattokinase Suntheanine

Kyolic
4.6
★ ★ ★ ★ ★
(7572 ratings)
Theanine 24 mg
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Score75
Better package value does not change the formula's main trade-off: strong garlic-and-nattokinase focus with minimal theanine.
How scoring works
Quantity:160 Capsule(s) • (80 servings)
Goals:

Score 75

Better package value does not change the formula's main trade-off: strong garlic-and-nattokinase focus with minimal theanine.
How scoring works

Also available as

1 option
80 servings Theanine 24 mg, Nattokinase 70 mg • 80 Capsule(s) • 40 servings $24.89 ($0.62 per serving)
$36.49($0.45 per serving)
Amazon
$ 36.49
Walmart
$ 42.60
Vitacost
$ 44.59
iHerb
$ 44.59
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Analysis

Aged garlic and nattokinase supply the main functional weight, with Suntheanine as a small supporting ingredient. Each component is listed separately.

The branded theanine source is a strength, but its amount is well below the usual focused range. Shoppers should not buy the product expecting a stand-alone theanine effect.

The larger package suits established users of the combination and lowers serving cost. Dedicated theanine products remain more efficient for calming goals.

Who is it for
  • Established users of garlic and nattokinase
  • Adults wanting a longer combination supply
  • People treating theanine as secondary
Best for
  • Longer cardiovascular-support routines
  • Aged-garlic supplementation
  • Minor branded-theanine inclusion

Pros

  • Longer serving supply
  • Suntheanine is clearly identified
  • Ingredient weights are disclosed
  • No hidden blend

Cons

  • Theanine amount is too small for focused use
  • Nattokinase activity units are missing
  • Narrow fit for calming goals
  • Theanine-specific value remains weak

Warnings

  • Garlic and nattokinase may add to anticoagulant or antiplatelet effects
  • Follow surgical guidance about stopping products that may affect bleeding
  • Avoid unsupervised use with a bleeding disorder

Nutrient quality

71 High impact

Suntheanine is a well-characterized branded L-theanine source. The small Suntheanine amount is unlikely to provide robust standalone theanine support.

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Ingredient transparency

84 Highest impact

Every listed active has a specific amount, which makes the core formula straightforward to assess. The supplied data omits a complete excipient list and full intake directions.

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Customer satisfaction

70 High impact

The supplied aggregate satisfaction signal is favorable. A large amount of feedback makes that aggregate signal reasonably stable, but no narrative evidence was provided.

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Value for money

73 High impact

Branded theanine and two additional actives provide reasonable quality for the asking level. The larger package improves serving-level value despite the weak theanine dose.

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Ingredients

IngredientAmount per serving
Aged Garlic extract powder
400 mg
Nattokinase
70 mg
Suntheanine
24 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Theanine · 24 mg OverallScore70
A+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyD+ Value

Suntheanine offers a well-defined branded L-theanine source with a fully disclosed amount. The dose remains too low for a stand-alone theanine serving, though the larger package improves cost efficiency somewhat and includes aged garlic plus nattokinase. Nattokinase and aged garlic may increase bleeding risk when combined with anticoagulant or antiplatelet medicines.

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87 Performance

L-Theanine 200 mg Double Strength

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<p>150 mg of clearly identified branded L-theanine gives the formula a clear and relevant foundation. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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<p>100 mg of clearly identified branded L-theanine gives the formula a clear and relevant foundation. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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<p>A lower serving cost comes with 200 mg of clearly stated l-theanine. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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<p>A lower serving cost comes with 200 mg of clearly stated l-theanine. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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<p>A lower serving cost comes with 100 mg of clearly stated l-theanine. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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L-Theanine 200 mg

California Gold Nutrition
<p>200 mg of clearly stated L-theanine is paired with favorable serving-level value in the supplied data. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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L-Theanine 100 mg

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<p>100 mg of clearly stated L-theanine is paired with favorable serving-level value in the supplied data. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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Suntheanine L-Theanine 125 mg

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<p>250 mg of clearly identified branded L-theanine is paired with favorable serving-level value in the supplied data. Compared with the original's 24 mg theanine contribution, the alternative provides a more substantial amount for calm-focus or relaxation use.</p>
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