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Omnia Sana · Plant Monograph

Soapwort

Saponaria officinalis

Family CaryophyllaceaeParts used Root (and aerial parts)Also known as Bouncing Bet, Common soapwort, Fuller's herb

This monograph compiles 2 documented constituents, 1 pharmacological action, 6 traditional / indicated uses, supported by 13 cited sources, drawn directly from the Omnia Sana plant database.

Key Constituents

Triterpenoid saponins (up to ~5%; e.g. saponarioside, vaccaroside)[11, 12, 13]

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.

Saponins
Flavonoids, vitamin C and resin[12]

Supporting constituents of the root.

Flavonoids

Pharmacological Actions

Expectorant[11, 12]

Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use

Traditional & Indicated Uses

Bronchitis[11, 12]Traditional · 1/10

Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use

more plants for bronchitis →detailed sources →
Cough[11, 12]Traditional · 1/10

Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use

more plants for cough →detailed sources →
Detox / cleansing[5, 12]Traditional · 2/10

Topical cleansing/soothing for skin ailments (the saponins act as a natural soap; traditional for eczema)

more plants for detox / cleansing →detailed sources →
Eczema[1, 12]Traditional · 2/10

Topical cleansing/soothing for skin ailments (the saponins act as a natural soap; traditional for eczema)

more plants for eczema →detailed sources →
Respiratory support[11, 12]Traditional · 1/10

Expectorant for cough, bronchitis and upper-respiratory catarrh (saponins stimulate the cough reflex and loosen mucus) - largely an outdated use

more plants for respiratory support →detailed sources →
Skin irritation[3, 5]Traditional · 2/10
more plants for skin irritation →detailed sources →

Safety, Cautions & Contraindications

Safety note[11, 12]Info

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).

Safety note[12]Caution

Internal use should only be under professional supervision; its expectorant use is now largely outdated. Avoid in pregnancy and breastfeeding.

References

REF-1025, REF-1026, REF-1027, REF-1028, REF-1029, REF-1030, REF-1031, REF-1032, REF-1033, REF-1034

References & Sources

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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

Record last updated 2026-06-20 · Provenance: website+pubmed+symptom-tool · Status: needs-review

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. Always consult a qualified practitioner before using medicinal plants.

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Generated June 22, 2026 from omniasana.bio