BioStacks
Focus Factor

Focus Factor Extra Strength

4 Tablets · 15 servings

iHerbAmazon

Best for

ImmuneGeneral HealthDental

Ingredients (24)

Vitamin B6

100%

Dose

15 mg

Target

1.3–25 mg

Form

Premium

Vitamin D

100%

Dose

1000 IU

Target

1000–5000 IU

Form

Premium

Niacin

100%

Dose

25 mg

Target

25–500 mg

Form

Standard

Vitamin C

100%

Dose

300 mg

Target

25–200 mg

Form

Standard

Magnesium

100%

Dose

100 mg

Target

100–400 mg

Form

Standard

Other Ingredients (7)

Magnesium StearateLubricant

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

ShellacCoating

Natural resin secreted by the lac bug, used as a coating and glazing agent for tablets and pills

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

Microcrystalline CelluloseBinder

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamins A, D and E in it absorb poorly without one.

With a meal containing fat
Keep it away from coffee, tea and dairy
Space it a couple of hours from Calcium and Green Tea Leaf Extract

On the label

Suggested Use: As a dietary supplement, take 4 tablets per day with food. To accommodate body weight, activity level, stress level, and/or inadequate diet, take additional tablets up to a maximum of 8 tablets per day.

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

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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. 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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