BioStacks
Ingredients (7)
Bilberry Extract
100%Dose
160 mg
Target
80–500 mg
Form
—
Vitamin B6
80%Dose
20 mg
Target
25–100 mg
Form
Premium
Vitamin B12
100%Dose
500 mcg
Target
250–5000 mcg
Form
Budget
Folate
100%Dose
1360 mcg
Target
400–800 mcg
Form
Not listed
Calcium
75%Dose
150 mg
Target
200–600 mg
Form
Budget
Other Ingredients (11)
Caramel ColorColor
Class III and IV caramel colors contain 4-methylimidazole (4-MEI), classified by IARC as Group 2B (possibly carcinogenic to humans) in 2011 (Monograph Vol. 101). California Prop 65 lists 4-MEI as a known carcinogen; products delivering >29 mcg/day require a cancer warning label. NTP TR-535 (2007) found 4-MEI caused lung tumors in mice. Major cola brands (Coca-Cola, Pepsi) voluntarily reformulated 2012-2014 to reduce 4-MEI below California thresholds. Because labels never specify Class I (sugar + heat only, safer) vs Class III/IV (ammonia-process, contains 4-MEI), consumers cannot verify which they're consuming. Combined with the additive's purely cosmetic purpose, the risk:benefit ratio is unfavorable for any supplement.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Spirulina Extract (Color)Colorant
Natural blue colorant derived from the cyanobacterium Arthrospira platensis (spirulina); the pigment is phycocyanin
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Calcium CarbonateBuffer
Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements
Calcium SilicateAnti-caking
Inorganic compound used as an anti-caking and flow agent in powdered supplements
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Hydroxypropyl CelluloseBinder
An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.
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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.