BioStacks
Best for
Ingredients (7)
L-Lysine
100%Dose
1500 mg
Target
1000–3000 mg
Form
Premium
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Budget
Echinacea purpurea Aerial Parts Extract 4:1
33%Dose
100 mg
Target
300–1500 mg
Form
—
Garlic Bulb
33%Dose
200 mg
Target
600–1200 mg
Form
Budget
Licorice Root Extract 4:1
10%Dose
15 mg
Target
150–500 mg
Form
—
Other Ingredients (7)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Vegetable/Confectioner's Glaze & WaxCoating
Plant-derived glaze or wax used as a tablet coating/polish.
How to Take It
Take it anytime
Take between meals — it competes with arginine for the same transporter.
On an empty stomach
On the label
Take 3 tablets daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$22.42
Near the median of 544 vitamin C 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.