Omnia SanaCommon names in 29 European languages →
The complete database record: 2 documented constituents, 1 pharmacological action, 5 traditional / indicated uses, with 14 cited sources.
Botanical Description
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 & Distribution
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 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]
Key Constituents
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
Traditional & Indicated Uses
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for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use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for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use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for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use
Traditional Use & History
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 Internal use as an expectorant for cough is an older tradition now considered outdated given the irritant, haemolytic risk of concentrated saponins.[11, 12]
Preparations
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
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.
Safety, Cautions & Contraindications
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.
Harvest Readiness
[14]
External Identifiers
References & Sources
- 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 - Plants For A Future 'Saponaria officinalis (Soapwort, Bouncing Bet)'. Available at: https://pfaf.org/user/Plant.aspx?LatinName=Saponaria+officinalis Traditional / reference
https://pfaf.org/user/Plant.aspx?LatinName=Saponaria+officinalis
Selected studies & references
All 13 studies in the Knowledge Finder →
This profile is assembled automatically from the Omnia Sana plant database, which we curate by hand. How this site is built.