BioStacks
Best for
Ingredients (6)
Vitamin D
100%Dose
2000 IU
Target
1000–5000 IU
Form
Premium
Glucosamine Hydrochloride
100%Dose
1500 mg
Target
1000–1500 mg
Form
Premium
Chondroitin/MSM Complex
34%Dose
275 mg
Target
800–1200 mg
Form
—
Boswellia Serrata Extract
33%Dose
100 mg
Target
300–1200 mg
Form
Budget
Chondroitin Sulfate Sodium
Amount not found
Other Ingredients (8)
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.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
TriacetinPlasticizer
Glycerol triacetate used as a plasticizer in film coats and a flavor carrier
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
On the label
As a dietary supplement, take 2 Tablets, or as directed by a qualified healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.99
Pricier than 77% of 632 vitamin D supplements
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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.