BioStacks
Other Ingredients (3)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Take it anytime
Water-soluble — timing doesn't matter. Split doses above ~500 mg if you want to absorb more of it.
With or without food
On the label
Adults take one capsule one to four times daily at mealtime.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$17.73
Near the median of 294 calcium supplements
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
American Health
Ester-C®, 225 Vegetarian Tablets (500 mg per Tablet)
🛡️ for Immune
83
American Health
Ester-C 500 mg
🛡️ for Immune
83
Webber Naturals
Vitamin C 1000 mg Calcium Ascorbate Stomach-Friendly
🛡️ for Immune
82
Swanson
Buffered Vitamin C
🛡️ for Immune
80
Source Naturals
Ascorbyl Palmitate 500 mg
🛡️ for Immune
60
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.