BioStacks
Best for
Ingredients (6)
Silica
100%Dose
40 mg
Target
5–30 mg
Form
—
Manganese
100%Dose
2 mg
Target
1.8–5 mg
Form
Standard
Horsetail extract
100%Dose
575 mg
Target
15–100 mg
Form
—
Zinc
33%Dose
5 mg
Target
15–30 mg
Form
Standard
Boron
33%Dose
1 mg
Target
3–6 mg
Form
Standard
Other Ingredients (4)
Coating (unspecified)Coating
Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
Take with food — on an empty stomach it commonly causes nausea.
With food
Space it a couple of hours from Iron and Calcium
On the label
As a dietary supplement, take 1 tablet 1 to 3 times daily, preferably with food. Consider taking these other NOW products: Biotin, Hyaluronic Acid and L-Cysteine.Natural color variations may occur in this product.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$18.36
Near the median of 19 silica 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.