LifeSource Vitamins Allergy Support — Tablets — Natural Seasonal Relief for Sinus, Respiratory & Immune Balance*
LifeSource Vitamins Allergy Support blends botanicals, enzymes and antioxidants—including quercetin, bromelain, vitamin C, stinging nettle and citrus bioflavonoids—to help maintain normal histamine activity, ease seasonal symptoms, and support comfortable breathing.* Produced in FDA-registered, GMP-certified facilities.*
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)
✓ Helps reduce seasonal symptoms* — Quercetin supports mast-cell stability and balanced histamine release (review/RCT context). NIH/PubMed — Mlcek, 2016–2018 context
✓ Supports sinus & nasal comfort* — Stinging nettle leaf studied for allergic rhinitis symptom relief. NIH/PubMed — Mittman, 2000; NIH/PubMed — Roschek, 2009
✓ Airway/pressure support* — Bromelain has been used for nasal congestion and postoperative sinus swelling. NIH/PubMed — Seltzer, 2012; NIH/PubMed — Tasman, 2001
✓ Antioxidant & immune defense* — Vitamin C supports innate/adaptive immunity and antioxidant protection. NIH/ODS — Fact Sheet; NIH/PMC — Carr & Maggini, 2017
✓ Inflammation balance* — Quercetin and bromelain are discussed for cytokine modulation in upper-airway contexts. NIH/PubMed — Secor, 2012
✓ Allergic rhinitis context* — Evidence syntheses explore flavonoids/enzymes for seasonal symptoms (adjunct to standard care). NIH/PubMed — Review 2020
Additional Studies Showing Promising Benefits
✓ Airway relaxation* — Quercetin investigated for bronchial smooth-muscle effects. NIH/PubMed — Rogerio, 2010
✓ Quercetin + Vitamin C synergy* — Co-administration may enhance bioavailability/antioxidant status (review). NIH/PubMed — Riva, 2021
✓ Combination allergy formulas* — Select trials report improvements in congestion and rhinorrhea. NIH/PubMed — Passali, 2006
We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
- Helps maintain healthy histamine balance*
- Supports sinus, nasal & airway comfort*
- Antioxidant nutrients for immune resilience*
- Non-drowsy botanicals & enzymes*
Suggested Use
Adults: Take 3 tablets daily with food, or 2 tablets up to twice daily during high-pollen days, or as directed by your healthcare professional. Best taken consistently throughout the season.*
Product Specifications
Serving Size — 3 tablets (per label)
• Key actives (per serving) — Vitamin C 100 mg; MSM 1500 mg; Seasonal Seven Comfort Blend 660 mg (amla, chebulic/beleric myrobalan, astragalus, ginger root, reishi, black pepper); Quercetin 300 mg; Stinging Nettle leaf 200 mg (std.); Turmeric 50 mg; Ginger 35 mg; Bromelain 25 mg (2400 GDU/g); Feverfew herb 25 mg; Organic VitaBerry® 25 mg.
• Form — Tablets
• Free From — No sugar, salt, dairy, yeast, wheat, gluten or artificial colors/flavors (per label)*
• 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.
Allergy Support — quercetin, bromelain, vitamin C, nettle & botanicals to help seasonal sinus, histamine & respiratory comfort. Third-party tested. Clinically Referenced — NIH/PubMed!*
