Palo azul is a "potassium-sparring diuretic"

Palo azul tea has been used traditionally for centuries to promote kidney and urinary tract health. In fact, because of palo azul's popularity for kidney health, it's often called "kidney wood" or "kidney tea."

Diuretics are substances which promote diuresis, which is another word for urination. You might think that drinking palo azul tea will promote excessive urination and dehydrate your body...and you'd be right if palo azul was an aquaretic diuretic such as green tea or coffee. But palo azul is no ordinary diuretic...😉 

2016 study found that palo azul is a "potassium-sparing diuretic", which means that it flushes out toxins without electrolyte loss because it spares potassium, so it doesn't lead to dehydration.


* Fun factDue to palo azul's popularity as a diuretic, it's commonly used by people as a means to clean out their system in order to pass drug tests. Diuretics are so powerful at cleansing the body, that in 1988 they were banned by the World Anti-Doping Agency because athletes were using them to detoxify their bodies and pass drug tests!

How can diuretics help you?

Promote healthy kidney function

palo azul vs kidney stones

Over a dozen studies have evaluated palo azul's diuretic activity and its beneficial effects for promoting healthy kidney function and reducing kidney stone growth. One study recommended palo azul as a "preventative measure to avoid kidney stone growth."

kidney stones

Another study also concluded that it can be "recommended as a preventive medicine in the formation of kidney stones.”

study explains that "flavonones in palo azul have been identified with antibacterial and antifungal activity.” Therefore, it could be used for “kidney problems, urinary tract pain, kidney calculi, and as a deflamatory."

This finding is corroborated by a 2022 study which mentioned that "this plant contains polyphenols, flavonoids and alkaloids, which could be effective in preventing the process of stone formation." This same study suggests that palo azul's "beneficial effects might be associated with diuretic activities, as well as an inhibitory effect on crystallization, nucleation, and aggregation of crystals." This study concludes that "molecular mechanisms involving these effects could be related to antioxidant, anti-inflammatory, and antimicrobial properties."

palo azul vs bacteria

Lastly, another 2022 study concluded that palo azul's "extract significantly reduced oxidative damages in both the kidneys and the liver, and such effect has been related to the high antioxidant capacity."


Maintains healthy urinary tract

man with kidney stone pain

Several studies show that diuretics are effective in treating urinary tract issues because they increases urinary flow. Moreover, a study found that the palo azul extracts were effective against bacteria which are “the most frequent causal agents of urinary tract infection.”

palo azul antioxidant herbs and plants

Finally, a book about botanical medicine writes the following statement about palo azul:

“If prone to acidic, overly concentrated urine, associated kidney stones and urinary tract sediment then Kidneywood (palo azul) will be of use. Because of the plant’s alkalinizing nature, acidic precipitants dissolve back into the urine, thereby reducing pain and urinary tract irritability associated with lithic deposits. Kidney wood (palo azul) is soothing to kidney and urinary tract irritability.”


In summary, studies show that palo azul tea has powerful diuretic, antioxidant, anti-inflammatory, anti-microbial and alkalinizing properties. The studies concluded that these mechanisms may have beneficial effects on dissolving kidney stones and promoting healthy kidney and urinary tract function. 

P.S...Don’t forget to help your friends & family by sharing palo azul with them!


    magiktea palo azul
    Seems like palo azul really is... 
    Key for health  😉

    Clinical Studies

    * Palo azul is commonly referred to by its scientific name: Eysenhardtia polystachya / E. polystachya / E.P - Cyclolepis genistoides / C. genistoides - kidney wood - palo dulce


    (March 2022) Nephroprotective Plants: A Review on the Use in Pre-Renal and Post-Renal Diseases

    (March 2022) Plants Used in Mexican Traditional Medicine for the Management of Urolithiasis: A Review of Preclinical Evidence, Bioactive Compounds, and Molecular Mechanisms

    (August 2021) Screening Anti-Inflammatory Effects of Flavanones Solutions

    (Jul-Sep, 2002) Effect of isoflavones isolated from heartwood of Eysenhardtia polystachya on the growth of oxalate crystals and urinary calcium phosphate

    (Jan 21, 2016) Diuretic activity of the bark of Eysenhardtia polystachya

    (2006) Herbal medicine of the American Southwest : a guide to the medicinal and edible plants of the Southwestern United States 

    (June 28, 2007) Estudio Etnobotánico de Eysenhardtia Polystachia (Ort.) Sarg. En una Comunidad del Municipio de Zempola, Hidalgo, y Evaluación del Efecto Diurético en Rata

    (Feb, 2009) Activity of extracts from two Eysenhardtia species against microorganisms related to urinary tract infections

    (Jul 2004) Effect of isoflavones from Eysenhardtia polystachya as inhibitors of calcium oxalate crystal aggregation 

    (Jan-May, 2007) Herbal Drugs in Urolithiasis - A Review

    (Dec 18, 1998) Antiurolithiatic activity of Eysenhardtia polystachya aqueous extract on rats