Marshmallow root (Althaea officinalis) has a long history in traditional herbalism, valued for its high mucilage content — a gel-like substance that becomes slippery when mixed with water. Research suggests this mucilage may help coat and soothe irritated mucous membranes, which is why the root has been studied primarily for its potential to ease coughs, sore throats, and mild digestive discomfort. Studies indicate it may also support skin health when applied topically and could play a role in promoting urinary tract comfort, though more rigorous clinical trials are needed in these areas. Commonly enjoyed as a tea, powder, or liquid extract, marshmallow root remains one of the gentler and more widely explored folk remedies in the herbal tradition.
Compare this supplementThese are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 400–800 mg | Twice daily | General digestive health and gut lining support | Common in clinical and observational studies on mucilaginous herbs |
| Extract | 500–1,000 mg | Three times daily | Cough relief and sore throat relief | Common in clinical trials studying mucilaginous herb preparations for upper respiratory symptoms |
| Liquid | 2–5 g | Three times daily | Digestive health and gastrointestinal irritation | Traditional use and herbal monographs; European Medicines Agency (EMA) traditional use documentation |
| Powder | 5–6 g | Daily | Urinary tract health and mild inflammation of urinary mucosa | Based on traditional herbal use and EMA/ESCOP monograph guidance |
| Topical | 5–20 mg | As needed | Skin health and minor skin irritation | Traditional use; EMA monograph supports topical application of marshmallow root preparations |