Omnia SanaPlant Comparison
Pygeum vs Corn Silk
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
Pygeum and Corn Silk: they share 5 indicated uses (arthritis / joint pain, inflammation (general), skin irritation, …); 1 pharmacological action in common.
Evidence face-off — shared uses
| Condition | Pygeum | Corn Silk | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 1/10 | Stronger for Pygeum |
| Inflammation (general) | 2/10 | 1/10 | Comparable evidence |
| Skin irritation | 5/10 | 1/10 | Stronger for Pygeum |
| Urinary support | 10/10 | 1/10 | Stronger for Pygeum |
| Urinary tract infection (UTI) | 9/10 | 1/10 | Stronger for Pygeum |
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
Major antioxidant constituents of corn silk; maysin is the predominant flavonoid quantified in standardised extracts.
Contribute to antioxidant and anti-inflammatory activity.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Supports lower urinary tract symptoms of benign prostatic hyperplasia (BPH) - a Cochrane meta-analysis of 18 RCTs (1562 men) found a moderate improvement in urinary symptoms and flow versus placebo, but the trials were small, short and methodologically weak, so the evidence remains uncertain
inferred from anti-inflammatory action
Supports lower urinary tract symptoms of benign prostatic hyperplasia (BPH) - a Cochrane meta-analysis of 18 RCTs (1562 men) found a moderate improvement in urinary symptoms and flow versus placebo, but the trials were small, short and methodologically weak, so the evidence remains uncertain
Supports lower urinary tract symptoms of benign prostatic hyperplasia (BPH) - a Cochrane meta-analysis of 18 RCTs (1562 men) found a moderate improvement in urinary symptoms and flow versus placebo, but the trials were small, short and methodologically weak, so the evidence remains uncertain
inferred from anti-inflammatory action
inferred from anticancer action
Soothing demulcent for urinary-tract irritation and mild urinary infections; supports kidney function
inferred from anti-inflammatory action
inferred from demulcent action
Diuretic - increases urine output to support the urinary tract and mild fluid retention/swelling; in conscious rats the aqueous extract is diuretic and kaliuretic and modifies glomerular filtration and potassium excretion
inferred from diuretic action
Diuretic - increases urine output to support the urinary tract and mild fluid retention/swelling; in conscious rats the aqueous extract is diuretic and kaliuretic and modifies glomerular filtration and potassium excretion; Soothing demulcent for urinary-tract irritation and mild urinary infections; supports kidney function
Safety, Cautions & Contraindications
Lower urinary tract / prostate symptoms must be medically assessed first to exclude prostate cancer. The evidence is mixed and rests on small, short, methodologically weak trials, so men with moderate or severe BPH should not rely on it instead of proven treatment.
Generally well tolerated, with mild gastrointestinal effects the most common report.
As a diuretic it should be taken with plenty of fluids; use caution alongside prescription diuretics or medicines that affect potassium.
May lower blood sugar and blood pressure, so use caution with antidiabetic or antihypertensive medication; avoid concentrated medicinal doses in pregnancy - a high-dose standardised extract increased pre-implantation losses in pregnant rats (no fetal malformations were seen).
External Ids
Botanical Description
Evergreen tree (Rosaceae), 10-30 m tall, with dark, fissured, red-brown bark (the source of the common name 'red stinkwood', from its unpleasant smell when cut). Leaves are glossy dark green, leathery, oblong with finely toothed margins. Small white, five-petalled flowers are borne in axillary racemes, followed by small reddish-brown, two-lobed fruit.
Tall, robust annual grass with broad, strap-like leaves and a stout, jointed stem. Male flowers form a terminal tassel; female flowers develop on the ear (cob), each floret bearing a single long, silky style and stigma ('corn silk') that protrudes from the husk to catch pollen.[11]
Habitat
Native to montane forests of central and southern Africa (and Madagascar), growing at moderate to high altitude (roughly 900-3400 m). The species is CITES-listed and conservation-threatened owing to over-harvesting of bark for the pharmaceutical trade.
Cultivated worldwide as a major cereal food crop in warm-temperate to tropical climates on fertile, well-drained soils; not found wild, having been domesticated from a wild grass ancestor (teosinte) in Mesoamerica.[11]
Harvesting
Bark is traditionally stripped from mature trees. Unsustainable stripping - especially removing bark all the way round the trunk - kills the tree and has driven population decline, so sustainable, partial and rotational bark harvesting or cultivated sources are recommended.
The silky stigmas and styles are collected from the ears in mid- to late summer, just before or as pollination occurs, while still fresh and pale, then dried quickly to preserve colour and flavonoid content.[11]
Traditional Uses
Prunus africana bark has a traditional use in East and Central African ethnomedicine for urinary complaints, and its extract (marketed as Pygeum) became one of the most widely used European phytotherapy remedies for benign prostatic hyperplasia (BPH) symptoms in the 20th century. Clinical evidence for symptom benefit is moderate but drawn from small, methodologically weak trials.[11]
Corn silk has a long traditional use across Chinese, Native American and European folk medicine as a gentle diuretic and soothing demulcent for urinary tract complaints, mild fluid retention and kidney support.[11]
Preparations
Dosage
Clinical trials have most often used around 100-200 mg/day of standardised lipophilic bark extract, divided into two doses. Educational reference only, not a prescription; any prostate or urinary symptom should be medically assessed first.
Not documented
References
Lookalikes Review
References & Sources
- Thompson, R.Q., Katz, D. and Sheehan, B (2019) 'Chemical comparison of Prunus africana bark and pygeum products marketed for prostate health', Journal of Pharmaceutical and Biomedical Analysis, 163, pp. 162-169. doi:10.1016/j.jpba.2018.10.004 Preclinical
https://doi.org/10.1016/j.jpba.2018.10.004 - Dvorkin, L. and Song, K.Y (2002) 'Herbs for benign prostatic hyperplasia', The Annals of Pharmacotherapy, 36(9), pp. 1443-1452. doi:10.1345/aph.1A228 Meta-analysis / review
https://doi.org/10.1345/aph.1A228 - Keehn, A. and Lowe, F.C (2015) 'Complementary and alternative medications for benign prostatic hyperplasia', The Canadian Journal of Urology, 22(Suppl 1), pp. 18-23. Meta-analysis / review
https://scholar.google.com/scholar?q=Complementary%20and%20alternative%20medications%20for%20benign%20prostatic%20hyperplasia - Kim, T.H., Lim, H.J., Kim, M.S. and Lee, M.S (2012) 'Dietary supplements for benign prostatic hyperplasia: an overview of systematic reviews', Maturitas, 73(3), pp. 180-185. doi:10.1016/j.maturitas.2012.07.007 Meta-analysis / review
https://doi.org/10.1016/j.maturitas.2012.07.007 - Cambronero, J., Osca-Garcia, J.M., Merino-Salas, S., Miguel, J.M. and others (2022) 'Effectiveness of treatment with Pygeum africanum in patients with lower urinary tract symptoms and benign prostatic hyperplasia: a cross-sectional study in the real-world clinical practice in Spain (The PROFIT Study)', Archivos Espanoles de Urologia, 75(3), pp. 219-227. Clinical study
https://scholar.google.com/scholar?q=Effectiveness%20of%20treatment%20with%20Pygeum%20africanum%20in%20patients%20with%20lower%20urinary%20tract%20symptoms%20and%20benign%20prostatic%20hyperplasia%3A%20a%20cross-sectional%20study%20in%20the%20real-world%20clinical%20practice%20in%20Spain%20%28The%20PROFIT%20Study%29 - Quiles, M.T., Arbos, M.A., Fraga, A., de Torres, I.M. and others (2010) 'Antiproliferative and apoptotic effects of the herbal agent Pygeum africanum on cultured prostate stromal cells from patients with benign prostatic hyperplasia (BPH)', The Prostate, 70(10), pp. 1044-1053. doi:10.1002/pros.21138 Preclinical
https://doi.org/10.1002/pros.21138 - Salinas-Casado, J., Esteban-Fuertes, M., Carballido-Rodriguez, J. and Cozar-Olmo, J.M (2020) 'Review of the experience and evidence of Pygeum africanum in urological practice', Actas Urologicas Espanolas, 44(1), pp. 9-13. doi:10.1016/j.acuro.2019.08.002 Meta-analysis / review
https://doi.org/10.1016/j.acuro.2019.08.002 - Villar, A., Silva-Fuentes, F., Mula, A. and Zangara, A (2024) 'Anti-Inflammatory Potential of Prunus africana Bark Extract: An In Vitro Study of Cytokine Release by Lipopolysaccharide-Stimulated Human Peripheral Blood Mononuclear Cells', International Journal of Molecular Sciences, 25(15), pp. 8298. doi:10.3390/ijms25158298 Preclinical
https://doi.org/10.3390/ijms25158298 - Larre, S., Camparo, P., Comperat, E., Boulbes, D. and others (2012) 'Biological effect of human serum collected before and after oral intake of Pygeum africanum on various benign prostate cell cultures', Asian Journal of Andrology, 14(3), pp. 499-504. doi:10.1038/aja.2011.132 Preclinical
https://doi.org/10.1038/aja.2011.132 - Rubegeta, E., Makolo, F., Kamatou, G., Enslin, G. and others (2023) 'The African cherry: A review of the botany, traditional uses, phytochemistry, and biological activities of Prunus africana (Hook.f.) Kalkman', Journal of Ethnopharmacology, 305, pp. 116004. doi:10.1016/j.jep.2022.116004 Meta-analysis / review
https://doi.org/10.1016/j.jep.2022.116004 - Keehn, A. and Lowe, F.C (2015) 'Complementary and alternative medications for benign prostatic hyperplasia', The Canadian Journal of Urology. Randomized trial
https://scholar.google.com/scholar?q=Complementary%20and%20alternative%20medications%20for%20benign%20prostatic%20hyperplasia - Dedhia, R.C. and McVary, K.T (2008) 'Phytotherapy for lower urinary tract symptoms secondary to benign prostatic hyperplasia', The Journal of Urology, 179(6), pp. 2119--2125. doi:10.1016/j.juro.2008.01.094 Meta-analysis / review
https://doi.org/10.1016/j.juro.2008.01.094 - Wilt, T. and Ishani, A. and Mac Donald, R. and Rutks, I. and Stark, G (2002) 'Pygeum africanum for benign prostatic hyperplasia', Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD001044 Meta-analysis / review
https://doi.org/10.1002/14651858.CD001044
- Zhang, Y., Wu, L., Ma, Z., Cheng, J. and Liu, J (2018) 'Corn silk (Zea mays L.), a source of natural antioxidants with alpha-amylase, alpha-glucosidase, advanced glycation and diabetic nephropathy inhibitory activities', Biomedicine & Pharmacotherapy, 110, pp. 510-517. doi:10.1016/j.biopha.2018.11.126 Preclinical
https://doi.org/10.1016/j.biopha.2018.11.126 - Wang, Y. and others (2023) 'Corn Silk Flavonoids Ameliorate Hyperuricemia via PI3K/AKT/NF-kappaB Pathway', Journal of Agricultural and Food Chemistry, 71(26), pp. 9968-9979. doi:10.1021/acs.jafc.3c03422 Preclinical
https://doi.org/10.1021/acs.jafc.3c03422 - Habtemariam, S (1998) 'Extract of corn silk (stigma of Zea mays) inhibits the tumour necrosis factor-alpha- and bacterial lipopolysaccharide-induced cell adhesion and ICAM-1 expression', Planta Medica, 64(4), pp. 314-318. doi:10.1055/s-2006-957441 Preclinical
https://doi.org/10.1055/s-2006-957441 - Chen, M.Y., Wu, J.M. and others (2025) 'Unlocking Corn Silk's Potential: Bioactive Compounds Targeting Age-Related Diseases', Molecular Nutrition & Food Research, 69(10), pp. e70117. doi:10.1002/mnfr.70117 Meta-analysis / review
https://doi.org/10.1002/mnfr.70117 - Li, Y. and others (2023) 'Diterpenoid and phenolic constituents from corn silk (Zea mays) with PTP1B inhibitory activity', Natural Product Research, 37(24), pp. 4189-4196. doi:10.1080/14786419.2023.2265038 Preclinical
https://doi.org/10.1080/14786419.2023.2265038 - Wang, B. and others (2019) 'Corn Silk (Zea mays) Induced Apoptosis in Human Breast Cancer (MCF-7) Cells via the ROS-Mediated Mitochondrial Pathway', Oxidative Medicine and Cellular Longevity, 2019, pp. 9789241. doi:10.1155/2019/9789241 Preclinical
https://doi.org/10.1155/2019/9789241 - Guo, J. and others (2024) 'Extraction, purification, structural characteristics, and pharmacological activities of the polysaccharides from corn silk: A review', International Journal of Biological Macromolecules, 274, pp. 133433. doi:10.1016/j.ijbiomac.2024.133433 Meta-analysis / review
https://doi.org/10.1016/j.ijbiomac.2024.133433 - Li, X. and others (2025) 'Ultrasound-assisted extraction of anti-inflammatory actives from corn silk (Zea mays L.): Process optimization, machine learning screening, and interaction mechanisms', Ultrasonics Sonochemistry, 118, pp. 107420. doi:10.1016/j.ultsonch.2025.107420 Preclinical
https://doi.org/10.1016/j.ultsonch.2025.107420 - Wang, Y. and others (2024) 'An Umbrella Insight into the Phytochemistry Features and Biological Activities of Corn Silk: A Narrative Review', Molecules, 29(4), pp. 891. doi:10.3390/molecules29040891 Meta-analysis / review
https://doi.org/10.3390/molecules29040891 - Zhang, W. and others (2023) 'Acidic polysaccharide from corn silk: Structural & conformational properties and hepatoprotective activity', International Journal of Biological Macromolecules, 237, pp. 123851. doi:10.1016/j.ijbiomac.2023.123851 Preclinical
https://doi.org/10.1016/j.ijbiomac.2023.123851 - Hasanudin, K., Hashim, P. and Mustafa, S (2012) 'Corn Silk (Stigma Maydis) in Healthcare: A Phytochemical and Pharmacological Review', Molecules. doi:10.3390/molecules171112937 Traditional / reference
https://doi.org/10.3390/molecules171112937 - Caixeta, G.A.B. and dos Santos Reis, D. and Soares, K.I. and de Brito Ramos, I. and Mendes, G.H.L. and others (2025) 'Toxicological Assessment of a Standardized Dry Extract of Zea mays L. (Poaceae) Stigmas During Gestation: Effects on Maternal Parameters and Fetal Outcomes in Wistar Rats', Birth Defects Research, 117(9). doi:10.1002/bdr2.2526 Traditional / reference
https://doi.org/10.1002/bdr2.2526 - Velazquez, D.V.O. and Xavier, H.S. and Batista, J.E.M. and de Castro-Chaves, C (2005) 'Zea mays L. extracts modify glomerular function and potassium urinary excretion in conscious rats', Phytomedicine, 12(5), pp. 363--369. doi:10.1016/j.phymed.2003.12.010 Traditional / reference
https://doi.org/10.1016/j.phymed.2003.12.010
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.