BioStacks
KAL

L-Theanine 25 mg (Pineapple)

1 Tablet · 120 servings · $0.09/serving

iHerbAmazon

Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

Best for

Sleep

Ingredients (1)

L-Theanine

25%

Dose

25 mg

Target

100–250 mg

Form

—

Other Ingredients (9)

SorbitolSweetener

A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Natural FlavorsFlavor

Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.

Apple FlavorFlavor

A flavoring formulated to taste of apple

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

StarchBinder

Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules

Soy PolysaccharidesDisintegrant

A soluble fiber from soybeans used as a disintegrant and bulking agent

How to Take It

Best taken in the evening

Calming — common before bed, or in the morning when paired with caffeine for focus.

With or without food

On the label

Dissolve one ActivMelt™ micro tablet on the tongue daily. Use only as directed.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$10.89

$10$20$50

Cheaper than 92% of 101 theanine supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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