BioStacks
21st Century

Antioxidant

1 Tablet · 75 servings · $0.10/serving

9 / 100Very Poor

Best for

Score Breakdown

Formulation
40
Safety
22
Final score
9/100

Ingredients (8)

Vitamin E

100%

Dose

90 mg

Target

50–268 mg

Form

Budget

Vitamin A

100%

Dose

1500 mcg RAE

Target

700–1500 mcg

Form

Budget

Vitamin C

100%

Dose

250 mg

Target

25–200 mg

Form

Budget

Copper

100%

Dose

1000 mcg

Target

1000–2000 mcg

Form

Budget

Manganese

83%

Dose

1.5 mg

Target

1.8–5 mg

Form

Budget

Other Ingredients (15)

Blue 2 LakeColorant

A synthetic coal-tar/petroleum-derived dye used purely for color, linked to behavioral concerns in sensitive children. The lake form adds aluminum. No health benefit — we flag all artificial colors.

TalcAnti-caking

IARC classifies cosmetic-grade talc not containing asbestos as Group 2B (possibly carcinogenic to humans); perineal talc use as Group 2A (probably carcinogenic). Johnson & Johnson voluntarily withdrew talc-based baby powder from US/Canada in 2020 and globally in 2022 after extensive litigation tied to ovarian-cancer and mesothelioma cases. The 2018 FDA contamination survey found asbestos in 9 of 52 cosmetic talc products tested. As a supplement excipient talc is a pure manufacturing convenience — no nutritional or functional benefit to the user — so the asbestos-exposure risk has no offsetting upside. Safer alternatives (silicon dioxide, microcrystalline cellulose, rice hulls) are widely available.

FD&C Red No. 40 LakeColorant

Same petroleum-derived azo dye as Red 40, linked to hyperactivity in children (Southampton study) and carrying an EU warning label; pure cosmetic color with zero benefit.

Titanium DioxideColorant

Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.

Glucose SyrupSweetener

High glycemic load; source typically corn (generally gluten-free)

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Magnesium StearateLubricant

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

Polyethylene Glycol (Coating)Coating

A polyether polymer used as a tablet coating and plasticizer

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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.