LifeSource Vitamins Zinc Lozenges — 15 mg, 120 Lozenges — Common-Cold Duration & Immune Support*
Slow-dissolving zinc lozenges deliver zinc ions to the mouth and throat while supporting whole-body immune function.* Produced in FDA-registered, GMP-certified facilities and 3rd-party lab tested for purity, potency & label accuracy.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep our guidance aligned with credible science.*
Clinically Studied Benefits (Human Evidence)
✓ Common cold (treatment)* — When started within 24 hours of symptom onset, zinc lozenges may shorten cold duration; results vary by formulation, dose, and timing. NIH/PMC — Hemilä, 2016; NIH/PubMed — Nault, 2024
✓ Immune support* — Zinc is essential for normal development and function of neutrophils, NK cells and lymphocytes; deficiency impairs immune defenses. NIH/PMC — Prasad, 2008; NIH/PMC — Maywald, 2017
Additional Studies Showing Promising Benefits
✓ Symptom intensity* — Reviews report reductions in overall symptom severity with appropriate lozenge use; findings are heterogeneous across trials. NIH/PMC — Hemilä, 2016
University / Academic Context
✓ Mechanistic context* — Academic reviews discuss zinc’s roles in epithelial barrier integrity and antiviral defenses; benefits depend on ionic availability and appropriate lozenge composition/dosing. NIH/PMC — Maywald, 2017
Global Evidence & Authoritative Reviews
✓ NCCIH* — Zinc may help shorten colds when taken early; advises against intranasal zinc. NCCIH — Zinc
✓ NIH Office of Dietary Supplements* — Zinc fact sheet with DRIs, ULs, and interactions. NIH/ODS — Zinc
✓ FDA Safety Notice* — Do not use intranasal zinc (anosmia risk). FDA Advisory
We monitor research from leading institutions — Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to keep our guidance aligned with credible science.*
Brief Benefit Bullets
- May shorten common-cold duration when started within 24 hours*
- Supports healthy immune cell function*
- Slow-dissolving lozenge for mouth & throat contact*
Suggested Use
See product label for full instructions, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
Serving Size — 1 lozenge
• Servings Per Container — 120
• Vitamin C — 60 mg (as calcium ascorbate, ascorbic acid)
• Zinc (elemental) — 15 mg (as citrate, gluconate)
• Slippery elm bark powder (Ulmus rubra) — 25 mg*
• Bee propolis — 5 mg*
• Other ingredients — Fructose, sorbitol, natural lemon flavor, stearic acid, silica, citric acid, magnesium stearate
• Free From — Non-GMO; no artificial preservatives*
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
Zinc Lozenges 15 mg (120) — may shorten common-cold duration when started early; immune support; slow-dissolving throat contact; third-party tested. Clinically Studied Ingredients — NIH/PubMed!*
