Herbs Hub
Buchu, Agathosma betulina. Botanical plate: Agathosma betulina - Köhler–s Medizinal-Pflanzen-020
Plate: Agathosma betulina - Köhler–s Medizinal-Pflanzen-020. Franz Eugen Köhler, Köhler's Medizinal-Pflanzen. Public domain.

Buchu

Agathosma betulina

Herbs & Roots. African.

Also called Round buchu, Bookoo

Liver risk at high doses

Buchu is a small South African shrub whose strong-smelling leaves are used in tea and tinctures, mainly for urinary complaints.

Did you know? Buchu leaves give off a strong smell that is often described as black currant or mint.

What it may help, and how strong the proof is

  • Kidneys, bladder & UTIs. Long traditional use for bladder and urinary symptoms. Human trials are few, and regulatory reviews have not endorsed it for urinary infections.
    Traditional proof
  • Infections. Lab tests show some germ-killing activity. Human proof is limited.
    Traditional proof

Parts of the body

Kidneys & bladder, Immune system

Traditional use

The Khoikhoi people of South Africa used buchu for many ailments long before European settlers arrived. European settlers later took up the plant for bladder and digestive complaints.

How it is classified

Herbal actions
Diuretic, Antimicrobial. Energy: neutral.

How people take it

Traditionally, a small amount of dried leaf is steeped as tea. There are no proven doses from good human trials, so follow label directions and never swallow essential oil.

Tea, tincture and capsule.

Where to get it

Grows wild in the dry shrublands (fynbos) of South Africa's Western Cape. Some supply is wild-harvested, and it is sold as dried leaf, tea, tinctures, and capsules.

Be careful

Buchu leaves contain pulegone, a compound that can harm the liver and kidneys at high or long-term doses. The essential oil is the most concentrated form and should not be swallowed. Avoid buchu if you have kidney inflammation, and check with a doctor before using it with water pills.

Avoid if: pregnancy; kidney disease; liver disease.

Mixing with other things

  • Works well together

    Both are old urinary herbs that often appear together in traditional blends.

  • Works well together

    Juniper berry is another traditional urinary herb with a similar history.

  • Use caution
    Water pills (furosemide, hydrochlorothiazide)

    Buchu may make you pass more urine. Taken with water pills, it can cause dehydration or low salt levels.

The honest take

Buchu has a long history of use, but modern proof is weak. Most research is lab work and reports of harm, and the leaves contain pulegone (a compound that can injure the liver). The essential oil is not safe to swallow.