BioStacks
Best for
Ingredients (14)
Vitamin C
100%Dose
1000 mg
Target
250–2000 mg
Form
Standard
Vitamin B6
100%Dose
2 mg
Target
1.3–25 mg
Form
Premium
Pantothenic Acid
20%Dose
10 mg
Target
50–500 mg
Form
Premium
Vitamin D
60%Dose
600 IU
Target
1000–5000 IU
Form
Premium
Vitamin A
100%Dose
750 mcg RAE
Target
700–1500 mcg
Form
Standard
Other Ingredients (7)
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.
Rice Bran OilCarrier
An oil pressed from rice bran, used as a carrier and emollient
CarobFlavor
Roasted powder from carob tree pods, used as a caffeine-free chocolate/cocoa substitute for flavor and brown color
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
BeeswaxCoating
Natural wax produced by honeybees, used as a coating and binding agent in softgels and tablets
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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.