Plant Comparison
White Dead Nettle vs Soapwort
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
White Dead Nettle and Soapwort: they share 4 indicated uses (bronchitis, cough, respiratory support, …); 1 pharmacological action in common.
Evidence face-off — shared uses
| Condition | White Dead Nettle | Soapwort | Verdict |
|---|---|---|---|
| Bronchitis | 1/10 | 1/10 | Comparable evidence |
| Cough | 1/10 | 1/10 | Comparable evidence |
| Respiratory support | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 2/10 | 2/10 | Comparable evidence |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Verbascoside, tiliroside and quercetin/kaempferol 3-O-glucosides in the flowers.
Lamalbid, alboside A and B and caryoptoside; linked to antioxidant and anti-inflammatory activity.
Lamalbid, chlorogenic acid, verbascoside, rutin and tiliroside, richest in the flowering tops.
Surfactant compounds giving the soapy, expectorant and irritant properties; their surface activity has been confirmed experimentally, with Saponaria officinalis saponins forming stable oil-in-water nanoemulsions.
Pharmacological Actions
Astringent and anti-inflammatory infusion or tincture (flowering tops)
Astringent (catarrh, excessive menstrual or vaginal discharge); Astringent and anti-inflammatory infusion or tincture (flowering tops)
Traditional & Indicated Uses
inferred from anti-inflammatory action
Astringent (catarrh, excessive menstrual or vaginal discharge)
inferred from anti-inflammatory action
inferred from expectorant action
inferred from astringent action
Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use
Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use
Topical cleansing/soothing for skin ailments (the saponins act as a natural soap; traditional for eczema)
Topical cleansing/soothing for skin ailments (the saponins act as a natural soap; traditional for eczema)
Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use
Safety, Cautions & Contraindications
Generally regarded as safe in culinary amounts and at normal medicinal doses; unlike the stinging nettle it has no stinging hairs.
Medicinal use during pregnancy or breastfeeding should be approached cautiously, as for any traditional astringent.
Identify correctly before foraging (resembles stinging nettle before flowering and red dead-nettle); clinical evidence is limited, so it should not replace conventional treatment.
SERIOUS: the saponins are irritant and can cause haemolysis (destruction of red blood cells). Never take soapwort in large doses or for prolonged periods. Internal use can cause severe gastrointestinal irritation (cramps, nausea, vomiting, diarrhoea).
Internal use should only be under professional supervision; its expectorant use is now largely outdated. Avoid in pregnancy and breastfeeding.
External Ids
Botanical Description
Perennial herb closely resembling stinging nettle in leaf shape but entirely without stinging hairs. Square stems bear opposite, toothed, heart-shaped leaves, and whorls of white, hooded, two-lipped flowers cluster in the upper leaf axils.[15]
Perennial herb (Caryophyllaceae), 30-90 cm tall, with erect, smooth or slightly hairy stems. Leaves are opposite, elliptical to lance-shaped, with 3-5 prominent veins. Clusters of fragrant, pale pink to white, five-petalled flowers are borne at the stem tips. The root system is creeping and rhizomatous.[12]
Habitat
Grows in hedgerows, waste ground, gardens and roadsides on nitrogen-rich soils; native to Europe and temperate Asia, widely naturalised elsewhere.
Native to Europe and western Asia and widely naturalised elsewhere; grows on riverbanks, roadsides, waste ground and damp meadows, often near old settlements, reflecting its historic cultivation as a source of soap.[12]
Harvesting
The flowering tops are picked as they open, largely through spring to autumn given the long flowering season, and dried in a warm, shaded, airy place; the standardisation markers are richest in the flowering tops specifically.[15]
The root is dug in autumn (traditionally from 2-3-year-old plants), when saponin content is highest; aerial parts are cut during the growing season.[12]
Traditional Uses
White dead-nettle flower has a long European folk history as an astringent remedy for catarrh and excessive menstrual or vaginal discharge, and topically as a vulnerary wash for minor wounds; the young leaves and shoots have also traditionally been eaten as a cooked spring pot-herb.
Soapwort takes its name from its traditional use as a natural, gentle soap - the root, crushed and agitated in water, produces a lathering saponin solution historically used for washing delicate fabrics and, topically, for skin conditions like eczema. Internal use as an expectorant for cough is an older tradition now considered outdated given the irritant, haemolytic risk of concentrated saponins.[11, 12]
References
Lookalikes Review
Preparations
Not documented
Crushed root simmered in water to produce a lathering, gentle cleansing wash for skin and delicate textiles.
Dried aerial parts or diluted root steeped in hot water; internal use only under professional supervision given real toxicity risk.
Dosage
Not documented
Given the real risk of haemolysis and gastrointestinal irritation from concentrated saponins, internal use should only be undertaken under professional supervision, at low doses and for short periods; topical/external use as a wash is the safer traditional application. Educational reference only, not a prescription; never take in large or prolonged doses.
References & Sources
- Czerwinska, M.E., Swierczewska, A., Wozniak, M. and Kiss, A.K (2017) 'Bioassay-Guided Isolation of Iridoids and Phenylpropanoids from Aerial Parts of Lamium album and Their Anti-inflammatory Activity in Human Neutrophils', Planta Medica, 83(12-13), pp. 1011-1019. doi:10.1055/s-0043-107031 Preclinical
https://doi.org/10.1055/s-0043-107031 - Czerwinska, M.E., Swierczewska, A. and Granica, S (2018) 'Bioactive Constituents of Lamium album L. as Inhibitors of Cytokine Secretion in Human Neutrophils', Molecules, 23(11), pp. 2770. doi:10.3390/molecules23112770 Preclinical
https://doi.org/10.3390/molecules23112770 - Czerwinska, M.E., Kalinowska, E., Popowski, D. and Bazylko, A (2020) 'Lamalbid, Chlorogenic Acid, and Verbascoside as Tools for Standardization of Lamium album Flowers - Development and Validation of HPLC-DAD Method', Molecules, 25(7), pp. 1721. doi:10.3390/molecules25071721 Preclinical
https://doi.org/10.3390/molecules25071721 - Sulborska, A., Konarska, A., Matysik-Wozniak, A., Dmitruk, M., Weryszko-Chmielewska, E., Skalska-Kaminska, A. and Rejdak, R (2020) 'Phenolic Constituents of Lamium album L. subsp. album Flowers: Anatomical, Histochemical, and Phytochemical Study', Molecules, 25(24), pp. 6025. doi:10.3390/molecules25246025 Preclinical
https://doi.org/10.3390/molecules25246025 - Konarska, A., Weryszko-Chmielewska, E., Matysik-Wozniak, A., Sulborska, A., Polak, B., Dmitruk, M., Piotrowska-Weryszko, K., Stefanczyk, B. and Rejdak, R (2021) 'Histochemical and Phytochemical Analysis of Lamium album subsp. album L. Corolla: Essential Oil, Triterpenes, and Iridoids', Molecules, 26(14), pp. 4166. doi:10.3390/molecules26144166 Preclinical
https://doi.org/10.3390/molecules26144166 - Khanaki, K., Fekri, A., Abedinzade, M., Mohammadi, E. and Aghajanpour, F (2022) 'Potential anti-inflammatory effect of Lamium album extract through caspase-3 and cyclooxygenase-2 genes expression in a rat model of middle cerebral artery occlusion', Folia Medica, 64(2), pp. 275-282. doi:10.3897/folmed.64.e60562 Preclinical
https://doi.org/10.3897/folmed.64.e60562 - Bubueanu, C., Iuksel, R. and Panteli, M (2019) 'Haemostatic activity of butanolic extracts of Lamium album and Lamium purpureum aerial parts', Acta Pharmaceutica, 69(3), pp. 443-449. doi:10.2478/acph-2019-0026 Preclinical
https://doi.org/10.2478/acph-2019-0026 - Arefani, S., Mehran, S.M.M., Moladoust, H., Norasfard, M.R., Ghorbani, A. and Abedinzade, M (2018) 'Effects of standardized extracts of Lamium album and Urtica dioica on rat tracheal smooth muscle contraction', Journal of Pharmacopuncture, 21(2), pp. 70-75. doi:10.3831/KPI.2018.21.008 Preclinical
https://doi.org/10.3831/KPI.2018.21.008 - Zhang, H., Rothwangl, K., Mesecar, A.D., Sabahi, A., Rong, L. and Fong, H.H.S (2009) 'Lamiridosins, hepatitis C virus entry inhibitors from Lamium album', Journal of Natural Products, 72(12), pp. 2158-2162. doi:10.1021/np900549e Preclinical
https://doi.org/10.1021/np900549e - Chipeva, V.A., Petrova, D.C., Geneva, M.E., Dimitrova, M.A., Moncheva, P.A. and Kapchina-Toteva, V.M (2013) 'Antimicrobial activity of extracts from in vivo and in vitro propagated Lamium album L. plants', African Journal of Traditional, Complementary and Alternative Medicines, 10(6), pp. 559-562. doi:10.4314/ajtcam.v10i6.30 Preclinical
https://doi.org/10.4314/ajtcam.v10i6.30 - Paduch, R. and Wozniak, A (2015) 'The Effect of Lamium album Extract on Cultivated Human Corneal Epithelial Cells (10.014 pRSV-T)', Journal of Ophthalmic & Vision Research, 10(3), pp. 229-237. doi:10.4103/2008-322X.170349 Preclinical
https://doi.org/10.4103/2008-322X.170349 - Abedinzade, M., Rostampour, M., Mirzajani, E., Khalesi, Z.B., Pourmirzaee, T. and Khanaki, K (2019) 'Urtica Dioica and Lamium Album Decrease Glycogen Synthase Kinase-3 beta and Increase K-Ras in Diabetic Rats', Journal of Pharmacopuncture, 22(4), pp. 248-252. doi:10.3831/KPI.2019.22.033 Preclinical
https://doi.org/10.3831/KPI.2019.22.033 - Budzianowski, J. and Skrzypczak, L (1995) 'Phenylpropanoid esters from Lamium album flowers', 38(4), pp. 997--1001. doi:10.1016/0031-9422(94)00727-B Traditional / reference
https://doi.org/10.1016/0031-9422(94)00727-B - Damtoft, S (1992) 'Iridoid glucosides from Lamium album', 31(1), pp. 175--178. doi:10.1016/0031-9422(91)83030-O Traditional / reference
https://doi.org/10.1016/0031-9422(91)83030-O - Pietrzak, W. and Nowak, R (2020) 'Lamalbid, Chlorogenic Acid, and Verbascoside as Tools for Standardization of Lamium album Flowers - Development and Validation of HPLC-DAD Method', 25(8). doi:10.3390/molecules25081913 Preclinical
https://doi.org/10.3390/molecules25081913 - Grieve, M (1931). Available at: https://botanical.com/botanical/mgmh/n/netwhd11.html Traditional / reference
https://botanical.com/botanical/mgmh/n/netwhd11.html - Herbal Reality (n.d.) 'White Deadnettle (Lamium album): Benefits, Uses, Safety'. Available at: https://www.herbalreality.com/herb/white-deadnettle/ Traditional / reference
https://www.herbalreality.com/herb/white-deadnettle/ - Ask-Ayurveda (n.d.) 'Lamium album (White Dead-Nettle) in Ayurveda - Benefits, Uses, Medicinal Properties & Healing Applications'. Available at: https://ask-ayurveda.com/wiki/article/4805-lamium-album Traditional / reference
https://ask-ayurveda.com/wiki/article/4805-lamium-album - Francis-Baker, T (2021), pp. 48. Traditional / reference
https://scholar.google.com/scholar?q=Francis-Baker%2C%20T - First Nature (n.d.) 'Lamium album, White Dead-nettle: identification, distribution, habitat'. Available at: https://www.first-nature.com/flowers/lamium-album.php Traditional / reference
https://www.first-nature.com/flowers/lamium-album.php - Ballyrobert Gardens (n.d.) 'Lamium album'. Available at: https://www.ballyrobertgardens.com/products/lamium-album Traditional / reference
https://www.ballyrobertgardens.com/products/lamium-album - Botanical Society of Scotland (2022) 'Plant of the Week - 17 January 2022: the White Dead-nettle (Lamium album)'. Available at: https://botsocscot.wordpress.com/2022/01/16/plant-of-the-week-january-17th-2022-the-white-dead-nettle-lamium-album/ Traditional / reference
https://botsocscot.wordpress.com/2022/01/16/plant-of-the-week-january-17th-2022-the-white-dead-nettle-lamium-album/ - Gardeners' World (2024) 'World (2024)'. Available at: https://www.gardenersworld.com/plants/dead-nettles/ Traditional / reference
https://www.gardenersworld.com/plants/dead-nettles/ - Royal Botanic Gardens, Kew (n.d.) 'Lamium album L'. Available at: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:448792-1 Traditional / reference
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:448792-1 - Royal Horticultural Society (n.d.) 'Lamium album (white deadnettle)'. Available at: https://www.rhs.org.uk/plants/9810/lamium-album/details Traditional / reference
https://www.rhs.org.uk/plants/9810/lamium-album/details - The Wildlife Trusts (n.d.) 'White dead-nettle'. Available at: https://www.wildlifetrusts.org/wildlife-explorer/wildflowers/white-dead-nettle Traditional / reference
https://www.wildlifetrusts.org/wildlife-explorer/wildflowers/white-dead-nettle
- Grzywaczyk, A., Smulek, W. and Kaczorek, E (2024) 'Saponaria officinalis saponins as a factor increasing permeability of Candida yeasts' biomembrane', World Journal of Microbiology & Biotechnology, 40(5), pp. 152. doi:10.1007/s11274-024-03961-9 Preclinical
https://doi.org/10.1007/s11274-024-03961-9 - Smulek, W., Zdarta, A., Pacholak, A., Zgola-Grzeskowiak, A. and others (2016) 'Saponaria officinalis L. extract: Surface active properties and impact on environmental bacterial strains', Colloids and Surfaces B: Biointerfaces, 150, pp. 209-215. doi:10.1016/j.colsurfb.2016.11.035 Preclinical
https://doi.org/10.1016/j.colsurfb.2016.11.035 - Jurek, I., Szuplewska, A., Chudy, M. and Wojciechowski, K (2021) 'Soapwort (Saponaria officinalis L.) Extract vs. Synthetic Surfactants - Effect on Skin-Mimetic Models', Molecules, 26(18), pp. 5628. doi:10.3390/molecules26185628 Preclinical
https://doi.org/10.3390/molecules26185628 - Yu, G.R., Lim, D.W., Karunarathne, W.A.H.M., Kim, G.Y. and others (2022) 'A non-polar fraction of Saponaria officinalis L. acted as a TLR4/MD2 complex antagonist and inhibited TLR4/MyD88 signaling in vitro and in vivo', FASEB Journal, 36(7), pp. e22387. doi:10.1096/fj.202200018RR Preclinical
https://doi.org/10.1096/fj.202200018RR - Hedayati, A., Naseri, F., Nourozi, E., Hosseini, B. and others (2022) 'Response of Saponaria officinalis L. hairy roots to the application of TiO2 nanoparticles in terms of production of valuable polyphenolic compounds and SO6 protein', Plant Physiology and Biochemistry, 178, pp. 80-92. doi:10.1016/j.plaphy.2022.03.001 Preclinical
https://doi.org/10.1016/j.plaphy.2022.03.001 - Sefrioui, M.R., El Othmani, I.S., Filali, H., Derfoufi, S. and others (2021) 'Evaluation of spermicidal activity of saponosides from Saponaria officinalis (Caryophyllaceae), Glycyrrhiza glabra (Fabaceae) and Herniaria glabra (Caryophyllaceae)', Medicine and Pharmacy Reports, 94(2), pp. 239-247. doi:10.15386/mpr-1879 Preclinical
https://doi.org/10.15386/mpr-1879 - Petrovic, G.M., Ilic, M.D., Stankov-Jovanovic, V.P., Stojanovic, G.S. and Jovanovic, S.C (2017) 'Phytochemical analysis of Saponaria officinalis L. shoots and flowers essential oils', Natural Product Research, 32(3), pp. 331-334. doi:10.1080/14786419.2017.1350668 Preclinical
https://doi.org/10.1080/14786419.2017.1350668 - Ashurova, L.N., Khurramov, A.R., Bobakulov, K.M., Sasmakov, S.A. and others (2025) 'A new withanolide from Saponaria officinalis and its antimicrobial and cytotoxic activities', Natural Product Research, 40(9), pp. 2392-2401. doi:10.1080/14786419.2025.2472276 Preclinical
https://doi.org/10.1080/14786419.2025.2472276 - Bolshakov, A.P., Stepanichev, M.Y., Dobryakova, Y.V., Spivak, Y.S. and Markevich, V.A (2020) 'Saporin from Saponaria officinalis as a Tool for Experimental Research, Modeling, and Therapy in Neuroscience', Toxins (Basel), 12(9), pp. 546. doi:10.3390/toxins12090546 Traditional / reference
https://doi.org/10.3390/toxins12090546 - Nujkic, M., Milic, S., Spalovic, B., Dardas, A. and others (2020) 'Saponaria officinalis L. and Achillea millefolium L. as possible indicators of trace elements pollution caused by mining and metallurgical activities in Bor, Serbia', Environmental Science and Pollution Research International, 27(36), pp. 44969-44982. doi:10.1007/s11356-020-10371-5 Preclinical
https://doi.org/10.1007/s11356-020-10371-5 - Drugs.com (n.d.) 'Soapwort Uses, Benefits & Dosage'. Available at: https://www.drugs.com/npp/soapwort.html Traditional / reference
https://www.drugs.com/npp/soapwort.html - MedicineNet (n.d.) 'Soapwort Root: Eczema Uses, Benefits, Side Effects'. Available at: https://www.medicinenet.com/soapwort/article.htm Traditional / reference
https://www.medicinenet.com/soapwort/article.htm - Jarzebski, M., Siejak, P., Smulek, W., Fathordoobady, F., Guo, Y. and others (2020) 'Plant Extracts Containing Saponins Affects the Stability and Biological Activity of Hempseed Oil Emulsion System', Molecules, 25(11). doi:10.3390/molecules25112696 Preclinical
https://doi.org/10.3390/molecules25112696
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.