NEW
🛡️ Zinc
21st Century, Zinc Citrate, 50 Mg, 360 Tabs
Cost per serving
$0.02
360 servings · ~360-day supply
Well absorbed
$6.75last seen · confirm on Amazon
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Zinc supports normal immune function, and zinc lozenges are a long-standing cold remedy. Below, the zinc products people use ranked by real cost per dose. A value comparison, not medical advice.
Updated July 2026
What the evidence actually shows
Evidence is mixed — some trials find lozenges started within a day of symptoms shorten a cold slightly; results are inconsistent. Stay at or below the 40 mg/day upper limit for ongoing use.
Commonly used: lozenges short-term; ≤40 mg/day ongoing.
Background on zinc from the NIH Office of Dietary Supplements .
Ranked by cost per dose
NEW
🛡️ Zinc
Horbäach Chelated Zinc Supplement 100mg | 250 Tablets | High…
Cost per serving
$0.04
250 servings · ~250-day supply
$9.99last seen · confirm on Amazon
Horbäach · Amazon.com 0
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🛡️ Zinc
Now Foods, Zinc, 50 mg, 250 Tabs
Cost per serving
$0.04
250 servings · ~250-day supply
$11.23last seen · confirm on Amazon
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🛡️ Zinc 3rd-party
Nature Made Zinc 30 mg
Cost per serving
$0.05
100 servings · ~100-day supply
$4.99last seen · confirm on Amazon
Nature Made · Amazon.com 0
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🛡️ Zinc
Nutricost, Zinc Gluconate Tablets, 50 Mg, 180 Count
Cost per serving
$0.05
180 servings · ~180-day supply
Well absorbed
$8.99last seen · confirm on Amazon
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🛡️ Zinc
Now Foods, Zinc, 50 mg, 100 Tabs
Cost per serving
$0.06
100 servings · ~100-day supply
$5.62last seen · confirm on Amazon
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🛡️ Zinc
Gericare, Mineral Supplement Geri-Care Zinc Sulfate, 50 mg, 60…
Cost per serving
$0.06
60 servings · ~60-day supply
$3.85last seen · confirm on Amazon
HerbsPro 0
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🛡️ Zinc
Foster And Thrive, Chelated Zinc, 50 Mg, 100 Tabs
Cost per serving
$0.07
100 servings · ~100-day supply
$6.99last seen · confirm on Amazon
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🛡️ Zinc
Windmill Health, Zinc Gluconate, 50 Mg, 100 Tabs
Cost per serving
$0.07
100 servings · ~100-day supply
Well absorbed
$7.20last seen · confirm on Amazon
HerbsPro 0
See the offer See the full ranking, benchmarks and lab-tested brands on best zinc by cost per dose.
Frequently asked
Does zinc help with immune support?+
Evidence is mixed — some trials find lozenges started within a day of symptoms shorten a cold slightly; results are inconsistent. Stay at or below the 40 mg/day upper limit for ongoing use. This page ranks the products people take by real cost per dose; it does not claim a supplement treats or cures anything. Not medical advice — talk to a clinician about immune support.
Which zinc is cheapest for immune support?+
As of July 2026, the best value we track is 21st Century, Zinc Citrate, 50 Mg, 360 Tabs. The full ranking by cost per dose is above; Price ÷ servings ÷ dose — the number retailers rarely divide out.
How much zinc for immune support?+
Commonly lozenges short-term; ≤40 mg/day ongoing. This is a general reference, not a prescription — confirm the right amount for you with a clinician. Not medical advice.