LifeSource Vitamins Marshmallow Liquid Extract — 1 fl oz (30 servings) — Soothes Respiratory & Digestive Health — Natural Flavor
LifeSource Vitamins Marshmallow Liquid Extract features organic Marshmallow Root (Althaea officinalis) traditionally used to soothe the throat and digestive tract. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for identity, potency & purity.*
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, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Soothes Dry, Irritated Cough — Marshmallow preparations report rapid soothing for oral/pharyngeal irritation and dry cough in consumer surveys and clinical observations.
NIH/PubMed — Deters, 2018
✓ Mucosal Comfort & Protection — Root extracts support epithelial cell viability and barrier function for irritated oral mucosa (in vitro and clinical data).
NIH/PMC — Bonaterra, 2020
✓ Digestive Tract Soothing — Gastroprotective effects against ulceration and oxidative stress in preclinical models, with traditional use supporting mucosal relief.
NIH/PMC — Zarei, 2015
✓ Anti-Inflammatory Support — Marshmallow root extracts demonstrate anti-inflammatory properties in immune cells and models of irritation.
NIH/PubMed — Elmastas, 2020
✓ Wound Healing Support — Extracts improve endothelial cell migration and wound closure in vitro, suggesting tissue-soothing potential.
NIH/PubMed — Dhingra, 2022
Additional / Promising Evidence
✓ May Support Respiratory Mucosa — Mucilage forms protective layer on irritated tissues in traditional and preclinical use.
NIH/PubMed — Various Traditional & Preclinical
✓ May Aid Digestive Comfort — Polysaccharides reduce irritation in gastrointestinal models (preclinical).
NIH/PubMed — Various Preclinical
✓ Phytochemical and Pharmacological Profile Review — Recent overview confirms antitussive, anti-inflammatory, gastroprotective properties of marshmallow root.
NIH/PubMed — Turgumbayeva, 2025
University-Led & Academic Studies
✓ Harvard Medical School — Herbal medicine research including demulcent herbs like marshmallow for mucosal support.
NIH/PubMed — Various, Ongoing
✓ Johns Hopkins — Studies on natural anti-inflammatory and soothing agents.
NIH/PubMed — Various, Ongoing
✓ Oregon State University – Linus Pauling Institute — Herbal and plant-based research on demulcents and mucosal health.
NIH/ODS — Linus Pauling Institute, Various
Global Evidence & Reviews
✓ American Botanical Council — Monograph on marshmallow root for soothing respiratory and digestive tissues.
American Botanical Council — Marshmallow Review
✓ NIH Office of Dietary Supplements — Herbal supplements fact sheet covering demulcent herbs like marshmallow.
NIH/ODS — Herbal Supplements Fact Sheet
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 align with credible science.*
Key Ingredients
- Organic Marshmallow Root (Althaea officinalis) — 800 mg herb weight equivalence per serving — Rich in mucilage to soothe the throat and digestive tract.
NIH/PubMed — Deters, 2018
Brief Benefit Bullets
- Soothes sore throat & dry cough*
- Supports respiratory comfort*
- Promotes digestive tract soothing*
- 3rd-party lab tested for purity & potency*
Suggested Use
Take 30 drops (1 ml, approximately 800 mg herb weight equivalence) directly or mix with water or juice, 1–2 times daily, 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: 30 Drops (1 ml, 800 mg herb weight equivalence) | Servings Per Container: 30
- Form: Alcohol-free liquid extract (Natural Flavor)
- Free From: Non-GMO, gluten-free, vegan*
- Other Ingredients: Organic Glycerin, Purified Water
- 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.
Marshmallow Liquid Extract — soothes respiratory & digestive health. 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
