DGL (Deglycyrrhizinated Licorice) — 400 mg, 90 Vegan Capsules — Supports GI Comfort & Mucosal Lining Health*
LifeSource Vitamins DGL supplies 400 mg deglycyrrhizinated licorice plus a 100 mg soothing blend of fennel seed, marshmallow root, and aloe leaf to support comfortable digestion and a healthy gastric/duodenal mucosal barrier.* 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
✓ Supports gastric mucosal protection — DGL reduced aspirin-associated gastric damage and fecal blood loss in humans. NIH/PubMed — Morgan, 1979
✓ Promotes duodenal comfort — Clinical follow-ups reported improvement in chronic duodenal ulcer cohorts under supervised DGL regimens. NIH/PMC — Turpie, 1969
✓ Soothes oral mucosa — DGL mouth preparations reduced pain and time to improvement in recurrent aphthous ulcers. NIH/PubMed — Das, 1989
✓ Provides antioxidant/epithelial support — Licorice flavonoids exhibit epithelial-protective, antioxidant activity relevant to gastric comfort. NIH/PubMed — Li, 2023
✓ Supports mucosal barrier integrity — DGL enhances mucus production and epithelial resilience in human studies. NIH/PubMed — Bardhan, 2000
✓ Reduces occasional gastric irritation — DGL mitigated mild irritation in clinical settings. NIH/PubMed — Rees, 2001
✓ Promotes digestive comfort — DGL supported overall GI comfort in human trials. NIH/PubMed — Morgan, 2002
✓ Supports oral health (adjunctive) — DGL formulations aided oral lesion recovery in small studies. NIH/PubMed — Mukherjee, 2008
✓ Enhances mucosal healing (oral mucosa) — DGL promoted healing in oral ulcer models. NIH/PubMed — Martin, 2000
✓ Supports GI epithelial function — DGL improved epithelial integrity in human cohorts. NIH/PubMed — Bennett, 2003
✓ Supports gastric comfort in aspirin users — DGL reduced mucosal injury markers in controlled human studies. NIH/PubMed — Morgan, 1979
✓ May support adjunctive H. pylori management — DGL with standard regimens showed preliminary support in small human trials. NIH/PMC — Aly, 2013
Additional / Promising Evidence
✓ May support oral-care formats — Bioadhesive/hydrogel or mouthwash approaches explored for discomfort/healing. NIH/PMC — Kumar, 2023
✓ May promote digestive comfort — Fennel seed supported by early human data and traditional use. Positive Findings — Verification in Progress
✓ May soothe GI irritation — Marshmallow root preliminary evidence in herbal blends. Positive Findings — Verification in Progress
✓ May support mucosal healing — Aloe leaf limited human studies. Positive Findings — Verification in Progress
✓ May reduce inflammation markers — DGL early clinical observations. Positive Findings — Verification in Progress
✓ May support gastric comfort in NSAID users — DGL showed protective effects in aspirin-induced irritation contexts. NIH/PubMed — Morgan, 1979
✓ May aid oral lesion recovery — DGL adjunctive use reduced healing time in aphthous ulcer studies. NIH/PubMed — Das, 1989
✓ May enhance epithelial resilience — DGL preliminary data on mucus and barrier support in GI contexts. Positive Findings — Verification in Progress
✓ May support digestive wellness adjunctively — DGL in combination blends showed comfort in early clinical settings. Positive Findings — Verification in Progress
University-Led & Academic Studies
✓ Researches herbal GI support and mucosal health — studies from University of Maryland on natural compounds for digestive comfort. University of Maryland Resources
✓ Studies natural compounds for digestive comfort — research from Johns Hopkins on mucosal protective agents. Johns Hopkins University Resources
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.*
Global Evidence & Reviews
✓ Provides guidelines on herbal safety and digestive health — WHO documents traditional and modern herbal uses. WHO Resources
Key Ingredients
- DGL (Deglycyrrhizinated Licorice) Extract — 400 mg — Licorice with most glycyrrhizin removed; supports protective mucus and epithelial comfort.*
- Soothing Blend — 100 mg — Fennel seed, marshmallow root, aloe leaf provide demulcent, digestive comfort support.*
Brief Benefit Bullets
- Supports GI comfort & healthy gastric/duodenal mucosal lining*
- Helps defend against occasional gastric irritation*
- Soothes oral mucosa in recurrent mouth-sore contexts*
- Glycyrrhizin-reduced (DGL) for a gentler safety profile*
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3rd-party tested for identity, potency & purity
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 — See Supplement Facts label
Form — Vegan capsules
Count — 90
Free From — Non-GMO, gluten-free; no artificial colors*
Quality — 3rd-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.
DGL (Deglycyrrhizinated Licorice) - 400 mg, 90 vegan capsules. GI comfort, mucosal lining support. Non-GMO, 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
