Nutricost Caffeine 100 mg with L-Theanine 100 mg

Nutricost · Caffeine 100 mg with L-Theanine 100 mg

Nutricost

Caffeine 100 mg with L-Theanine 100 mg

Non-Nutrient/Non-Botanical240 servings

Looks good our read

All 2 actives we can check reach a studied dose.

Dose 2 of 2 reach a studied dose

How to takeSuggested use: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.

  • Gluten Free
Quality

How it scores

$13.95 4.4 (1,917)

Overall

A

Evidence

A

Dose

A

Formulation

C

Brand

57/100

Dose check

Does the dose do anything?

  • Caffeine Anhydrous

    At the studied dose

    100 mg / day studies used 75-800 mg · 67 studies

  • L-Theanine

    At the studied dose

    100 mg / day studies used 50-420 mg · 16 studies

What it's studied for

  • Focus staminaA

    Hold focus through repetitive work

    Attention & executive function

  • Sustained exercise outputB

    Sustain more output for longer

    Exercise performance

  • Planning and focusB

    Plan tasks and adapt to change

    Attention & executive function

  • Pulse under stressA

    Limit stress-related pulse spikes

    Cardiovascular

  • Muscle forceA

    Increase everyday strength

    Muscle function

The label

What's in it

Serving size 1 Capsule(s)

IngredientAmount%DV

Other ingredients

A few additives worth noting in the inactive ingredients.

  • Rice Flour: filler; benign but cheap
  • Gelatin: capsule shell; neutral unless ethical concern
  • Microcrystalline Cellulose: bulking agent
  • Magnesium Stearate: flow agent; fine in trace
  • Silica: flow agent; inert but filler

Reported interactions

Interacts with:
Antihypertensives ·Antidepressants ·Other ·Carbamazepine ·Phenobarbital ·Phenytoin ·Gabapentin ·Levetiracetam
Side effects:
Death ·Seizure ·Rhabdomyolysis ·Myocardial_infarction ·Arrhythmia ·Hepatotoxicity

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

The brand

Nutricost

57/100

Nutricost is a value-oriented supplement brand with no obvious red flags in the provided materials, but the available pages do not establish standout transparency, testing rigor, or premium trust signals.

Quality 55
Formulation 60
Safety 65
Transparency 38
Value 74
  • ✓ Third-party tested
  • ✓ Premium ingredients
Read the full Nutricost investigation →

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