Doctor's Best Suntheanine L-Theanine 150 mg

Doctor's Best · Suntheanine L-Theanine 150 mg

Doctor's Best

Suntheanine L-Theanine 150 mg

Amino acid/Protein10 servings

Looks good our read

The dose here lands inside the range studies actually used.

Dose At dose vs. studied dose

  • Vegetarian
Quality

How it scores

Overall

B

Evidence

B

Dose

A

Formulation

A

Brand

82/100

Dose check

Is it dosed to do anything?

What Suntheanine L-Theanine is good for

  • Grip strengthC

    Strengthen your grip

    Muscle function

  • StressC

    Reduce daily stress

    Anxiety & stress

  • Impulse controlD

    Improve impulse control

    Attention & executive function

  • Sleep qualityB

    Improve sleep quality

    Sleep

  • Time to fall asleepC

    Fall asleep faster

    Sleep

The label

What's in it

Serving size 1 Capsule(s)

IngredientAmount%DV

Other ingredients

Clean formula. The inactive ingredients are standard capsule components.

  • Rice powder
  • Vegetable Capsule

Reported interactions

Interacts with:
Doxorubicin ·Morphine ·Capecitabine ·Oxaliplatin ·Nicotine ·Tetrahydrocannabinol ·Mecamylamine
Side effects:
Fatigue ·Headache ·Nausea ·Dizziness ·Dysgeusia ·Anxiety

From research databases. Not medical advice — talk to your physician.

The brand

Doctor's Best

82/100

Doctor's Best shows a mixed trust profile, with visible transparency signals and a product-specific COA, but the provided materials do not establish broad, independently verified quality control.

Quality 69
Formulation 84
Safety 97
Transparency 78
Value 92
  • ✓ Third-party tested
  • ✓ Effective dosing
  • ✓ Premium ingredients
Read the full Doctor's Best investigation →

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