BioStacks
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Sodium Stearyl FumarateLubricant
A standard tablet/capsule lubricant, often used in place of magnesium stearate.
How to Take It
Take it anytime
Plain ascorbic acid is acidic — high doses can bite on an empty stomach. Take it with food if that happens, and split doses above ~500 mg.
With or without food
On the label
Take 1 capsule daily with food, or as directed by a qualified health care practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$49.00
Pricier than 95% of 375 vitamin C supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.