BioStacks
Bluebonnet

Optimum-C Formula

2 Capsules · 45 servings · $0.65/serving

iHerbAmazon

Best for

Immune

Ingredients (8)

Vitamin C

100%

Dose

1000 mg

Target

250–2000 mg

Form

Standard

Citrus Bioflavonoid Complex

100%

Dose

500 mg

Target

250–1000 mg

Form

—

Grape seed extract

67%

Dose

100 mg

Target

150–600 mg

Form

—

Hesperidin

40%

Dose

200 mg

Target

500–1000 mg

Form

—

Rutin

20%

Dose

50 mg

Target

250–500 mg

Form

—

Other Ingredients (2)

Magnesium StearateLubricant

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

HypromelloseCapsule

Plant-derived capsule material from cellulose

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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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