Plant Comparison

Birch vs Oregon Grape

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.

First plant
Second plant
Show:
Plant ABirchBetula pendulaBetulaceaeFull monograph →
Plant BOregon GrapeMahonia aquifoliumBerberidaceaeFull monograph →

At a glance

Birch and Oregon Grape: they share 7 indicated uses (arthritis / joint pain, cancer (anticancer research), eczema, …); 3 pharmacological actions in common.

BirchOregon Grape
Constituents31
Pharmacological actions103
Indicated uses168
Safety notes22
Cited sources1613
Indicated uses
Only Birch
Acid refluxBack painBlood sugar / diabetes supportCold & fluIndigestionMetabolic supportSwelling / fluid retentionUrinary supportUrinary tract infection (UTI)
Shared (7)
Arthritis / joint painCancer (anticancer research)EczemaInfection (general)Inflammation (general)Skin irritationWounds
Only Oregon Grape
Psoriasis
Pharmacological actions
Only Birch
Anti-rheumatic / anti-arthriticAntidiabetic (blood-sugar lowering)AntioxidantAntiviralDiureticEmollient / skin-soothingGastroprotective
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antimicrobial
Only Oregon Grape
none

Evidence face-off — shared uses

ConditionBirchOregon GrapeVerdict
Arthritis / joint pain1/107/10Stronger for Oregon Grape
Cancer (anticancer research)2/102/10Comparable evidence
Eczema1/107/10Stronger for Oregon Grape
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/107/10Stronger for Oregon Grape
Skin irritation1/108/10Stronger for Oregon Grape
Wounds1/101/10Comparable 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

Flavonoids (quercetin, myricetin, hyperoside)[1]

Principal diuretic and antioxidant constituents of the leaf.

FlavonoidsQuercetin
Triterpenes (betulin, betulinic acid)[1, 4]

Characteristic bark triterpenes, betulin giving birch bark its white colour; studied for anticancer and anti-inflammatory activity.

Terpenes / terpenoids
Tannins and phenolic acids[1]

Contribute to the astringent and antioxidant properties of the bark and leaf.

TanninsPhenolic acids
Isoquinoline alkaloids (berberine, berbamine, palmatine, jatrorrhizine, magnoflorine)[2, 11, 12]

Berberine is the main anti-psoriatic and antimicrobial constituent.

AlkaloidsBerberine

Pharmacological Actions

Anti-inflammatory[1, 4, 7, 9, 13, 14, 15]
Anti-rheumatic / anti-arthritic[4, 13, 14, 15]
Anticancer (preclinical)[7, 8, 9, 13, 14, 15]
Antidiabetic (blood-sugar lowering)[6, 13, 14, 15]
Antimicrobial[1, 13, 14, 15]
Antioxidant[1, 2, 5, 6, 7, 13, 14, 15]
Antiviral[13, 14, 15]
Diuretic[13, 14, 15]
Emollient / skin-soothing[13, 14, 15]
Gastroprotective[13, 14, 15]
Anti-inflammatory[7, 10, 11]

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis)

Anticancer (preclinical)[3, 4, 6, 11]

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis)

Antimicrobial[2, 5, 8, 9, 12]

Antimicrobial (berberine) - supports skin and mucosal infection

Traditional & Indicated Uses

Acid reflux[13, 14, 15]Traditional · 1/10

inferred from gastroprotective action

Evidence: 1
Label: Acid reflux
Arthritis / joint pain[13, 14, 15]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Back pain[13, 14, 15]Traditional · 1/10

inferred from anti-rheumatic action

Evidence: 1
Label: Back pain
Blood sugar / diabetes support[13, 14, 15]Traditional · 1/10

inferred from antidiabetic action

Evidence: 1
Label: Blood sugar / diabetes support
Cancer (anticancer research)[8]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Cold & flu[13, 14, 15]Traditional · 1/10

inferred from antiviral action

Evidence: 1
Label: Cold & flu
Eczema[13, 14, 15]Traditional · 1/10

inferred from emollient action

Evidence: 1
Label: Eczema
Indigestion[13, 14, 15]Traditional · 1/10

inferred from gastroprotective action

Evidence: 1
Label: Indigestion
Infection (general)[13, 14, 15]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)
Inflammation (general)[13, 14, 15]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Metabolic support[13, 14, 15]Traditional · 1/10

inferred from antidiabetic action

Evidence: 1
Label: Metabolic support
Skin irritation[13, 14, 15]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Swelling / fluid retention[13, 14, 15]Traditional · 1/10

inferred from diuretic action

Evidence: 1
Label: Swelling / fluid retention
Urinary support[13, 14, 15]Traditional · 1/10

inferred from diuretic action

Evidence: 1
Label: Urinary support
Urinary tract infection (UTI)[13, 14, 15]Traditional · 1/10

inferred from diuretic action

Evidence: 1
Label: Urinary tract infection (UTI)
Wounds[13, 14, 15]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds
Arthritis / joint pain[11]Good · 7/10

inferred from anti-inflammatory action

Evidence: 7
Label: Arthritis / joint pain
Cancer (anticancer research)[3]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Eczema[11]Good · 7/10

Topical for atopic dermatitis (eczema) and skin irritation

Evidence: 7
Label: Eczema
Infection (general)[5, 12]Traditional · 2/10

Antimicrobial (berberine) - supports skin and mucosal infection

Evidence: 2
Label: Infection (general)
Inflammation (general)[10, 11]Good · 7/10

inferred from anti-inflammatory action

Evidence: 7
Label: Inflammation (general)
Psoriasis[1, 7, 11, 13]Strong · 9/10

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis); Topical treatment of mild-to-moderate psoriasis (reduces plaque severity) - a double-blind, placebo-controlled RCT showed significant improvement in PASI and quality-of-life scores

Evidence: 9
Label: Psoriasis
Skin irritation[1, 11]Good · 8/10

Topical for atopic dermatitis (eczema) and skin irritation

Evidence: 8
Label: Skin irritation
Wounds[12]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

Safety, Cautions & Contraindications

Safety note[13, 14, 15]Info

Generally considered safe when used appropriately. Side effects may include diarrhea, nausea, and allergic reactions (itching, rash, stuffy nose). Not recommended for individuals with edema caused by heart or kidney dysfunction. Ensure adequate fluid intake when using as a diuretic. Frequency of side effects is unknown.

Safety note[13, 14, 15, 16]Info

Duke (2002) provides clinical evidence (score 2) for birch leaf's diuretic activity, as well as for its use in urinary gravel, kidney stones, and rheumatic conditions — consistent with Commission E (KOM) and German Phytotherapy (PIP) approvals. It acts as an aquaretic, increasing urine volume without electrolyte loss. Antimelanomic activity has been demonstrated in experimental studies. The plant has a good safety profile and is classified as non-toxic at usual therapeutic doses (Duke, 2002).

Safety note[12]Caution

Avoid internal use in pregnancy and breastfeeding: like goldenseal, the berberine it contains can cross the placenta and into milk and worsen newborn jaundice (kernicterus risk).

Safety note[11, 12]Caution

Berberine impairs the metabolism of some medicines - for example it raises blood levels of cyclosporine, risking toxicity - so use caution with prescription drugs. It is used mainly topically for skin conditions.

External Ids

Gbif: 5331916
Powo: urn:lsid:ipni.org:names:295174-1
Wikidata: Q156895
Gbif: 3033865
Wikidata: Q158303

Botanical Description

Elegant deciduous tree with a slender trunk, distinctive smooth white bark that peels in papery horizontal strips and becomes dark and fissured near the base with age, and characteristically drooping ('pendulous') branchlets. The leaves are small, triangular to diamond-shaped, doubly toothed and long-pointed. Male and female flowers are borne in separate catkins on the same tree in spring.[1]

Height: Up to 25-30 m
Habit: Slender deciduous tree with drooping branchlets
Leaves: Small, triangular to diamond-shaped, doubly toothed, long-pointed
Flowers: Separate male and female catkins on the same tree
Stem: Slender trunk with smooth white, papery, peeling bark, dark and fissured at the base with age
Root: Shallow, wide-spreading root system
Fruit: Tiny winged seed (samara) shed from the female catkin
Flowering Period: April-May

Evergreen shrub, 0.5-2 m tall, spreading by underground rhizomes to form thickets. The pinnate leaves resemble holly, with 5-9 glossy, dark green, spiny-toothed leaflets that often turn bronze-red in winter. Small, bright yellow, six-petalled flowers are borne in dense, upright terminal racemes in early spring, followed by clusters of blue-black, grape-like berries with a waxy bloom. The wood and inner bark of the stem and root are bright yellow when cut, owing to their high content of berberine-type alkaloids.

Height: 0.5-2 m
Habit: Evergreen, rhizomatous, colony-forming shrub
Leaves: Pinnate, holly-like, 5-9 glossy dark green spiny-toothed leaflets
Flowers: Small, bright yellow, six-petalled, in dense upright terminal racemes
Stem: Woody; wood and inner bark bright yellow when cut
Root: Woody, rhizomatous, bright yellow within (berberine-type alkaloids)
Fruit: Clusters of blue-black, grape-like berries with a waxy bloom
Flowering Period: Early spring (March-April)

Habitat

A pioneer tree of light, well-drained, often poor or acidic soils, growing in woodland, heathland and waste ground across Europe and much of temperate Asia.[1]

Native to the Pacific Northwest of North America, growing in coniferous woodland understorey, forest margins and rocky slopes; widely introduced and naturalised as an ornamental and hedging shrub in temperate regions elsewhere.

Harvesting

Leaves are picked in spring and early summer while young and tender; bark is collected from felled or fallen wood (living trees should not be stripped of bark, which can kill them); sap is tapped in early spring, before leaf-out, through a small hole bored in the trunk.[1]

Parts: Bark, Leaf, Sap
Season: Leaf in spring/early summer; sap in early spring before leaf-out; bark from felled wood

The root and root bark, the medicinal parts, are dug from established plants - traditionally in autumn - and dried. Because wild populations are slow-growing, cultivated or nursery-sourced material is preferred over wild-harvesting.

Parts: Root, Bark
Season: Autumn

Traditional Uses

Birch leaf is a classic European 'aquaretic' diuretic used for urinary gravel, kidney stones and as a spring detoxifying tonic, and for rheumatic and joint complaints; the bark and its extracts have a long folk history for skin conditions, while the sap has been drunk fresh as a traditional spring tonic.[1]

Oregon grape root has a traditional Native American and Eclectic-medicine history as a bitter tonic and alterative (blood-purifying) remedy and for skin conditions. Its main modern use, supported by clinical trials, is topical application of a standardised bark extract for mild-to-moderate psoriasis and atopic dermatitis (eczema), where its berberine-type alkaloids give anti-inflammatory and antiproliferative effects on skin cells.[1, 11, 12]

Preparations

Infusion (leaf)[1]

Dried leaf infused in hot water as a traditional diuretic and 'detox' tea, classically taken as a course in spring.

Decoction (bark)[1]

Bark simmered in water or processed into extracts for topical skin use.

Topical cream/ointment[1, 11, 13]

A standardised 10% Mahonia aquifolium bark extract cream, the best-studied form, applied to affected skin up to three times daily for psoriasis or eczema.

Dosage

Leaf infusion[12, 13]

The EU herbal monograph gives 2-3 g of the comminuted leaf in 150 mL of boiling water as an infusion, up to 4 times daily, in adolescents, adults and elderly, with adequate fluid intake; dry extract at 0.25-1 g 4 times daily and liquid extract at 15 mL 2-3 times daily are also listed. Traditionally used over a period of 2-4 weeks. Not recommended under 12 years. Educational reference only, not a prescription.

Topical 10% extract cream[11, 13]

Clinical trials in psoriasis and eczema have used a 10% Mahonia aquifolium bark extract cream applied to affected areas up to three times daily. Educational reference only, not a prescription; internal use is not well studied and should be supervised.

References

REF-0743, REF-0744, REF-0745, REF-1692, REF-1693, REF-1694, REF-1695, REF-1696, REF-1697, REF-1698, REF-1699
REF-1173, REF-1174, REF-1175, REF-1176, REF-1177, REF-1178, REF-1179, REF-1180, REF-1181, REF-1182

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

References & Sources

  1. Rastogi, S., Pandey, M.M. and Kumar Singh Rawat, A (2014) 'Medicinal plants of the genus Betula — traditional uses and a phytochemical-pharmacological review', Journal of Ethnopharmacology, 159, pp. 62-83. doi:10.1016/j.jep.2014.11.010 Traditional / reference
    https://doi.org/10.1016/j.jep.2014.11.010
  2. Penkov, D., Andonova, V., Delev, D. and Kostadinov, I (2018) 'Antioxidant Activity of Dry Birch (Betula pendula) Leaves Extract', Folia Medica, 60(4), pp. 571-579. doi:10.2478/folmed-2018-0035 Preclinical
    https://doi.org/10.2478/folmed-2018-0035
  3. Sevastre-Berghian, A.C., Ielciu, I., Bab, T., Olah, N.K. et al (2023) 'Betula pendula Leaf Extract Targets the Interplay between Brain Oxidative Stress, Inflammation, and NF-kB Pathways in Amyloid Abeta-Treated Rats', Antioxidants (Basel), 12(12), pp. 2110. doi:10.3390/antiox12122110 Preclinical
    https://doi.org/10.3390/antiox12122110
  4. Grundemann, C., Gruber, C.W., Hertrampf, A., Zehl, M., Kopp, B. and Huber, R (2011) 'An aqueous birch leaf extract of Betula pendula inhibits the growth and cell division of inflammatory lymphocytes', Journal of Ethnopharmacology, 136(3), pp. 444-451. doi:10.1016/j.jep.2011.05.018 Preclinical
    https://doi.org/10.1016/j.jep.2011.05.018
  5. Azman, N.A.M., Skowyra, M., Muhammad, K., Gallego, M.G. and Almajano, M.P (2017) 'Evaluation of the antioxidant activity of Betula pendula leaves extract and its effects on model foods', Pharmaceutical Biology, 55(1), pp. 912-919. doi:10.1080/13880209.2017.1282528 Preclinical
    https://doi.org/10.1080/13880209.2017.1282528
  6. Bljajic, K., Sostaric, N., Petlevski, R., Vujic, L., Brajkovic, A. and Fumic, B (2016) 'Effect of Betula pendula Leaf Extract on alpha-Glucosidase and Glutathione Level in Glucose-Induced Oxidative Stress', Evidence-Based Complementary and Alternative Medicine, 2016, pp. 8429398. doi:10.1155/2016/8429398 Preclinical
    https://doi.org/10.1155/2016/8429398
  7. Ou-Yang, T., Zhang, Y., Luo, H.Z., Liu, Y. and Ma, S.C (2023) 'Novel compounds discovery approach based on UPLC-QTOF-MS/MS chemical profile reveals birch bark extract anti-inflammatory, -oxidative, and -proliferative effects', Journal of Ethnopharmacology, 309, pp. 116148. doi:10.1016/j.jep.2023.116148 Preclinical
    https://doi.org/10.1016/j.jep.2023.116148
  8. Szoka, L., Nazaruk, J., Stocki, M. and Isidorov, V (2021) 'Santin and cirsimaritin from Betula pubescens and Betula pendula buds induce apoptosis in human digestive system cancer cells', Journal of Cellular and Molecular Medicine, 25(23), pp. 11085-11096. doi:10.1111/jcmm.17031 Preclinical
    https://doi.org/10.1111/jcmm.17031
  9. Isidorov, V., Szoka, L. and Nazaruk, J (2018) 'Cytotoxicity of white birch bud extracts: Perspectives for therapy of tumours', PLoS One, 13(8), pp. e0201949. doi:10.1371/journal.pone.0201949 Preclinical
    https://doi.org/10.1371/journal.pone.0201949
  10. Efthimiou, I., Vlastos, D., Triantafyllidis, V., Eleftherianos, A. and Antonopoulou, M (2022) 'Investigation of the Genotoxicological Profile of Aqueous Betula pendula Extracts', Plants, 11(20), pp. 2673. doi:10.3390/plants11202673 Preclinical
    https://doi.org/10.3390/plants11202673
  11. Jafari Hajati, R., Payamnoor, V., Ahmadian Chashmi, N. and Ghasemi Bezdi, K (2018) 'Improved accumulation of betulin and betulinic acid in cell suspension culture of Betula pendula Roth by abiotic and biotic elicitors', Preparative Biochemistry & Biotechnology, 48(10), pp. 915-924. doi:10.1080/10826068.2018.1514514 Preclinical
    https://doi.org/10.1080/10826068.2018.1514514
  12. European Medicines Agency (HMPC) (2015) 'European Union herbal monograph on Betula pendula Roth and/or Betula pubescens Ehrh. as well as hybrids of both species, folium'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-betula-pendula-roth-betula-pubescens-ehrh-folium_en.pdf Traditional / reference
    https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-betula-pendula-roth-betula-pubescens-ehrh-folium_en.pdf
  13. European Medicines Agency (HMPC) (2015) 'Birch leaf (Betulae folium): summary for the public'. Available at: https://www.ema.europa.eu/en/documents/herbal-summary/birch-leaf-summary-public_en.pdf Traditional / reference
    https://www.ema.europa.eu/en/documents/herbal-summary/birch-leaf-summary-public_en.pdf
  14. Oszmiański J, et al. Evaluating birch leaf tea as a functional herbal beverage. Food Res Int. 2024. https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ (2024) 'https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/'. Available at: https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 Traditional / reference
    https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519
  15. Rastogi S, Pandey MM, Rawat AKS. Medicinal plants of the genus Betula—Traditional uses and a phytochemical–pharmacological review. J Ethnopharmacol. 2015;159:62-83. https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ (2015) ';159:62-83'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ Traditional / reference
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/
  16. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
  1. Gulliver, W.P. and Donsky, H.J (2005) 'A report on three recent clinical trials using Mahonia aquifolium 10% topical cream and a review of the worldwide clinical experience with Mahonia aquifolium for the treatment of plaque psoriasis', American Journal of Therapeutics, 12(5), pp. 398-406. doi:10.1097/01.mjt.0000174350.82270.da Clinical study
    https://doi.org/10.1097/01.mjt.0000174350.82270.da
  2. Cernakova, M. and Kostalova, D (2002) 'Antimicrobial activity of berberine--a constituent of Mahonia aquifolium', Folia Microbiologica, 47(4), pp. 375-378. doi:10.1007/BF02818693 Preclinical
    https://doi.org/10.1007/BF02818693
  3. Damjanovic, A., Kolundzija, B., Matic, I.Z., Krivokuca, A. and others (2020) 'Mahonia aquifolium Extracts Promote Doxorubicin Effects against Lung Adenocarcinoma Cells In Vitro', Molecules, 25(22), pp. 5233. doi:10.3390/molecules25225233 Preclinical
    https://doi.org/10.3390/molecules25225233
  4. Cernakova, M., Kostalova, D., Kettmann, V., Plodova, M. and others (2002) 'Potential antimutagenic activity of berberine, a constituent of Mahonia aquifolium', BMC Complementary and Alternative Medicine, 2, pp. 2. doi:10.1186/1472-6882-2-2 Preclinical
    https://doi.org/10.1186/1472-6882-2-2
  5. Slobodnikova, L., Kostalova, D., Labudova, D., Kotulova, D. and Kettmann, V (2004) 'Antimicrobial activity of Mahonia aquifolium crude extract and its major isolated alkaloids', Phytotherapy Research, 18(8), pp. 674-676. doi:10.1002/ptr.1517 Preclinical
    https://doi.org/10.1002/ptr.1517
  6. Godjevac, D., Damjanovic, A., Stanojkovic, T.P., Andjelkovic, B. and Zdunic, G (2018) 'Identification of cytotoxic metabolites from Mahonia aquifolium using 1H NMR-based metabolomics approach', Journal of Pharmaceutical and Biomedical Analysis, 150, pp. 9-14. doi:10.1016/j.jpba.2017.11.075 Preclinical
    https://doi.org/10.1016/j.jpba.2017.11.075
  7. Muller, K. and Ziereis, K (1994) 'The antipsoriatic Mahonia aquifolium and its active constituents; I. Pro- and antioxidant properties and inhibition of 5-lipoxygenase', Planta Medica, 60(5), pp. 421-424. doi:10.1055/s-2006-959523 Preclinical
    https://doi.org/10.1055/s-2006-959523
  8. Rohrer, U., Kunz, E.M.K., Lenkeit, K., Schaffner, W. and Meyer, J (2007) 'Antimicrobial activity of Mahonia aquifolium and two of its alkaloids against oral bacteria', Schweizer Monatsschrift fur Zahnmedizin, 117(11), pp. 1126-1131. Preclinical
    https://scholar.google.com/scholar?q=Antimicrobial%20activity%20of%20Mahonia%20aquifolium%20and%20two%20of%20its%20alkaloids%20against%20oral%20bacteria
  9. Vollekova, A., Kostalova, D., Kettmann, V. and Toth, J (2003) 'Antifungal activity of Mahonia aquifolium extract and its major protoberberine alkaloids', Phytotherapy Research, 17(7), pp. 834-837. doi:10.1002/ptr.1256 Preclinical
    https://doi.org/10.1002/ptr.1256
  10. Hajnicka, V., Kostalova, D., Svecova, D., Sochorova, R. and others (2002) 'Effect of Mahonia aquifolium active compounds on interleukin-8 production in the human monocytic cell line THP-1', Planta Medica, 68(3), pp. 266-268. doi:10.1055/s-2002-23126 Preclinical
    https://doi.org/10.1055/s-2002-23126
  11. Gulliver, W.P. and colleagues (2018) 'Review of the Efficacy and Safety of Topical Mahonia aquifolium for the Treatment of Psoriasis and Atopic Dermatitis', Journal of Clinical and Aesthetic Dermatology. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334833/ Meta-analysis / review
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334833/
  12. Herbal Reality (n.d.) 'Oregon Grape Root (Berberis aquifolium): Benefits, Uses, Safety'. Available at: https://www.herbalreality.com/herb/oregon-grape/ Traditional / reference
    https://www.herbalreality.com/herb/oregon-grape/
  13. Bernstein, S., Donsky, H., Gulliver, W., Hamilton, D., Nobel, S. and Norman, R (2006) 'Treatment of mild to moderate psoriasis with Relieva, a Mahonia aquifolium extract - a double-blind, placebo-controlled study', American Journal of Therapeutics, 13(2), pp. 121--126. doi:10.1097/00045391-200603000-00007 Randomized trial
    https://doi.org/10.1097/00045391-200603000-00007

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.