This is **Cognizin** citicoline — the branded form behind most human cognition trials — at a full 500mg daily serving, the top of the studied range for memory, attention, and focus. Citicoline (CDP-choline) is one of the few choline forms that crosses into the brain, where it fuels acetylcholine production and raises uridine, both linked to sharper cognition. As directed, you're getting a genuine brain-active dose, not a token amount.

At 500mg you're in studied territory for focus and mental energy, not just topping up general choline needs. Citicoline's cognitive benefits in the research come from this brain-active form specifically, which is why both the dose and the form matter here.

Each serving is two capsules, so the 500mg splits to 250mg per capsule — if you take only one, you're still in a studied range but at the lighter end used for everyday cognitive support rather than the fuller 500mg dose.

BioStacks
Life Extension

Citicoline CDP-Choline

2 Capsules · 30 servings · $0.85/serving

iHerbAmazon

Best for

Brain

Ingredients (1)

Cognizin Citicoline

100%

Dose

500 mg

Target

100–500 mg

Form

Premium

Other Ingredients (4)

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

Microcrystalline CelluloseBinder

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

Microcrystalline CelluloseBinder

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

How to Take It

Take it anytime

Take with food — higher doses on an empty stomach commonly cause nausea.

With food

On the label

Take 2 capsules daily.

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

Price Check

$25.50

$20$50

Near the median of 61 choline supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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