BioStacks
Natural Factors

Eye Factors with 2 mg Lutein

1 Capsule · 90 servings · $0.14/serving

63 / 100Good

Best for

Score Breakdown

Formulation
72
Safety
87
Final score
63/100

Ingredients (8)

Marigold

100%

Dose

20 mg

Target

10–20 mg

Form

Bilberry Concentrate

63%

Dose

50 mg

Target

80–500 mg

Form

Eyebright Extract 4:1

50%

Dose

100 mg

Target

200–600 mg

Form

Lutein

20%

Dose

2 mg

Target

10–20 mg

Form

Multi Anthocyanidins

19%

Dose

15 mg

Target

80–500 mg

Form

Other Ingredients (2)

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

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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.