Frangula (Rhamnus frangula): Properties and Uses in Herbal Medicine

Frangula (Rhamnus frangula): Properties and Uses in Herbal Medicine

What are the Properties of Buckthorn and What is it Used For?

Buckthorn is a medicinal plant with remarkable properties, but often overlooked. Behind its dark branches and bright green leaves lies a bark rich in active ingredients, used for centuries in traditional medicine. Belonging to the Rhamnaceae family, it is best known for its laxative action and its ability to gently stimulate intestinal peristalsis, but its benefits do not stop there. If you want to better understand its characteristics and uses, this guide will take you through its properties, applications, and usage methods.

buckthorn berries

What is Buckthorn or Frangula

Buckthorn, scientifically known as Frangula alnus Mill. or Rhamnus frangula, is a spontaneous shrub belonging to the Rhamnaceae family, whose discreet yet widespread presence characterizes numerous natural environments in Europe. The name "buckthorn" probably derives from the fragility of its branches, which are particularly flexible and easy to break - a characteristic that also determined its use in craftsmanship in the past. This small tree, native to Europe and Central Asia, has also managed to conquer territories in North Africa and was later naturalized in the eastern United States. Its adaptability has made it a common plant in our ecosystems, particularly in humid places such as riverbanks, forest edges, and marshy areas, where it finds its ideal habitat up to about 1000 meters in altitude.

If you want to make the most of buckthorn's properties, the quality of the bark is essential. At Terzaluna, you can find dried buckthorn bark, ready to use for decoctions and herbal teas. Carefully harvested and processed in harmony with nature's timing, it is the best way to incorporate this remedy into your daily routine.

  • Laxative properties
  • Herbal tea blend
  • From wild harvesting
3,50€
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Botanical Description

Buckthorn presents itself as an elegant and easily recognizable shrub:

  • Size: reaches an average height of 2-3 meters, sometimes up to 4-5 meters
  • Bark: gray-violet or lead gray, a distinctive feature with numerous white-gray lenticels (round in young branches, elongated in older ones)
  • Branches: flexible and erect, with alternate arrangement and mainly developed at the ends
  • Leaves: alternate and deciduous, ovate-elliptic in shape with entire margins, glossy dark green upper surface
  • Flowers: small (3-4 mm), whitish or greenish, gathered in clusters of 2-6 at the leaf axils, bloom in spring
  • Fruits: small spherical drupes that mature from green to red to bluish-black, containing yellowish seeds

Its spring flowering offers small discreet flowers, while the complete vegetative cycle provides the spectacle of branches that can simultaneously host buds, flowers, and fruits in various stages of maturation.

Parts Used

The buckthorn bark represents the most valuable part of the plant for herbal and therapeutic use. It is in this thin layer that the beneficial active ingredients are concentrated, particularly the anthraquinone glycosides, responsible for its laxative properties. An essential aspect to highlight is that fresh bark contains irritating substances (anthranols) potentially harmful to the intestines.

For this reason, the bark must necessarily undergo a process of drying and aging for at least 1-2 years before use. This process allows the oxidation of anthranols into anthraquinones, making the bark safe and effective.

At Terzaluna, you can find quality buckthorn bark, already properly dried and ready to use, to ensure you all the benefits of this natural remedy.

### Distribution and Habitat The buckthorn decidedly prefers **moist and sandy soils**, thriving in lowland or mountain forests and along waterways. In Italy, it is particularly widespread in the northern regions, where it finds the ideal climatic conditions for its development. In drier soils, the shrub adapts by taking on a more compact form and flowering mainly in spring. Its **adaptability** has led to commercial cultivation in various parts of Eastern Europe, with significant harvests in Russia, the Netherlands, Poland, Bulgaria, and the Czech Republic, where the properties of buckthorn bark are exploited for the production of herbal remedies. ## Buckthorn: Properties The **buckthorn bark** represents a true **phytotherapeutic treasure**, whose effectiveness is recognized and documented in scientific literature. This part of the plant, properly dried and seasoned, contains a complex of properties that make it particularly valuable in the realm of medicinal plants. Let's look in detail at the characteristics that make buckthorn bark so special: - **Laxative properties**: The main and most well-known characteristic of buckthorn is its **gentle yet effective laxative action**, provided by the anthraquinone glycosides present in the bark. These compounds stimulate intestinal peristalsis in a non-aggressive way. Discover other [laxative teas](https://www.terzaluna.com/blog/tisane-lassative). - **Tonic action on the intestine**: Unlike other natural laxatives, buckthorn has the ability to **restore tone to intestinal muscle fibers**, promoting the restoration of the colon's natural motility. - **Hydrating effect on fecal mass**: The active ingredients in buckthorn bark reduce the reabsorption of water, sodium, and chlorine by the intestinal mucosa, allowing for greater hydration of the stools and facilitating their expulsion. - **Non-irritating action**: When properly dried, the bark exerts its laxative action without causing significant irritation to the delicate intestinal mucosa. - **Choleretic properties**: In addition to its main effect on intestinal transit, buckthorn also stimulates **bile secretion**, supporting liver function and improving fat digestion. - **Non-habit-forming effect**: A particularly appreciated feature of buckthorn is that, when used correctly, it **does not create dependency** even with prolonged use, unlike many other laxatives. These properties make buckthorn bark a **versatile and valuable remedy**, particularly suitable in cases where softer stools are needed without resorting to aggressive or chemical laxatives. Its gentle yet effective action has made it a traditional remedy appreciated for centuries in European phytotherapy. ![buckthorn](https://www.terzaluna.com/image/catalog/blog/frangola/frangola-3.jpg) ## Active Ingredients and Mechanism of Action Buckthorn owes its therapeutic efficacy to a **particularly rich and complex chemical composition**. At the heart of this plant's properties are the **anthraquinone glycosides**, bioactive molecules that are the main contributors to its laxative effect. Specifically, the bark contains **frangulin A and C**, **glucofrangulins A and B**, and their aglycones, which constitute the distinctive phytochemical heritage of this natural remedy. The **mechanism of action** of the anthraquinones present in buckthorn is fascinating in its biological simplicity: once ingested, these compounds are not absorbed in the stomach or small intestine but reach the colon intact, where intestinal bacterial flora transform them into their active forms. These metabolites act directly on the cells of the intestinal mucosa, inhibiting the absorption of water and electrolytes (mainly sodium and chlorine) and stimulating the secretion of fluids into the intestinal lumen. The increase in water content softens the fecal mass, facilitating its transit. Simultaneously, the anthraquinones activate the nerve plexuses of the intestinal wall, intensifying peristaltic movements gradually but effectively.

This dual mechanism - hydration of intestinal contents and stimulation of peristalsis - explains why the laxative effect of buckthorn bark generally manifests 6-8 hours after ingestion, the time needed for the active ingredients to reach the colon and be metabolized. In addition to anthraquinones, the bark also contains naphthoquinones and traces of peptide alkaloids like frangulanin, along with bitter substances, arachidic acid, and rhamnoxanthin. This complex synergy of components contributes to the overall therapeutic action, enhancing the main effect and providing secondary properties to the plant.

Scientific research confirms the effectiveness of these active ingredients but also emphasizes the importance of the proper preparation of the bark. The presence of anthranols in fresh bark, potentially irritating to the intestines, makes the drying and aging process essential, during which these compounds oxidize into therapeutically active and well-tolerated anthraquinones.

Benefits of Buckthorn

Buckthorn bark, with its rich array of active ingredients, offers numerous benefits that make it a valuable ally for our daily well-being. Here are the main advantages this medicinal plant can provide when used consciously:

  • Regulation of intestinal transit: the main benefit of buckthorn is its ability to naturally resolve occasional constipation issues, especially those of nervous origin, restoring balance to intestinal functions.
  • Support in detox diets: thanks to its intestinal cleansing action, buckthorn facilitates the elimination of accumulated toxins in the body, proving particularly effective during seasonal changes or after periods of unbalanced diet.
  • Prevention of intestinal stasis: occasional intake helps prevent the formation of intestinal stagnation, promoting a healthier microbiota and reducing the risk of abnormal fermentations.
  • Preparation for diagnostic exams: it is used as part of intestinal preparation before diagnostic procedures like colonoscopy, thanks to its effectiveness in clearing the intestines.
  • Support in case of acne and skin problems: included in detox mixtures with other plants like birch and pansy, buckthorn helps purify the body from within, with positive effects also on skin health.
  • Improvement of liver function: by stimulating bile secretion, it helps the liver in its detoxification processes, supporting one of the key organs for body detoxification.

Unlike many chemical laxatives, buckthorn does not cause painful intestinal contractions but acts gradually and respectfully of the body's physiology, allowing you to regain your natural rhythm without trauma or imbalances. This gentle yet effective approach represents the essence of conscious phytotherapy: working with nature, not against it.

Nature has its own timing, and buckthorn teaches us this: its bark must rest and age for at least a year before being used. If you don't want to risk immature or low-quality products, at Terzaluna you can find carefully dried buckthorn bark ready for use. Discover it now!

  • Laxative properties
  • Herbal tea blend
  • From wild harvesting
3,50€
Buy
 

Uses of Buckthorn

Buckthorn, with its valuable bark, boasts a history of uses as rich as it is fascinating, spanning centuries of folk traditions and herbal practices. This versatile shrub has found applications in surprisingly diverse fields, from traditional medicine to craftsmanship, to now-forgotten industrial applications.

In the field of phytotherapy, buckthorn bark comes in various forms, each suitable for specific needs. On the shelves of modern herbal shops, we can find:

  • Herbal teas and decoctions: the most traditional and accessible form, ideal for those who prefer simple and natural remedies
  • Nebulized dry extracts: available in tablets or capsules, with precise dosing of active ingredients
  • Mother tinctures: liquid alcohol-based preparations, for easy intake and prolonged storage
  • Powders: to be taken in wafers or mixed with honey, for those who prefer to avoid preparing infusions

In the past, the versatility of buckthorn went far beyond medicinal use. In the Bologna area, its flexible twigs were skillfully crafted to create pipe straws, while in Switzerland and Eastern European countries, the charcoal obtained from its wood - known for its exceptional rapid combustion - was sought after for the production of gunpowder. Its bark was also used in dyeing, thanks to the natural pigments that could be extracted to color fabrics.

How to take buckthorn

To benefit from the properties of buckthorn bark, it is essential to follow the correct methods of intake.

The decoction is one of the most effective preparations: simply boil about 30-40 grams of dried bark in a liter of water for 10-15 minutes, let it rest covered for several hours (ideally overnight), and filter before use.

For those who prefer quicker methods, the cold infusion offers a gentle alternative: let a teaspoon of chopped bark infuse in a cup of water for an entire day, filter, and consume in the evening before bed, possibly sweetening with a bit of honey.

As for the dry extract, the recommended dose is generally 2-3 mg per kilogram of body weight per day. Since the active ingredients of buckthorn take about 10-12 hours to manifest their effect, it is advisable to take any preparation in the evening before bed to reap benefits upon waking.

The plant's sap, less known but equally useful, is sometimes used as a natural mouthwash against canker sores and stomatitis, demonstrating how every part of this medicinal plant can offer beneficial properties when used correctly.

Buckthorn herbal tea: how to prepare it

Preparing buckthorn herbal tea requires particular attention, especially regarding dosage. This medicinal plant, with its potent laxative properties, should be used with awareness and adherence to recommended doses to fully enjoy its benefits without experiencing undesirable effects. 

It is important to note that, in accordance with European regulations, products containing anthraquinone derivatives like buckthorn bark are subject to specific regulations that limit their continuous use, precisely to protect consumer health.

buckthorn bark

Preparation of the herbal tea

Here’s how to correctly prepare a buckthorn bark herbal tea with beneficial properties:

  1. Dosage: use 1-2 grams of dried bark (about a teaspoon) per cup of water. Never exceed 3 grams per single dose.
  2. Infusion: bring the water to a boil, turn off the heat, and add the chopped buckthorn bark.
  3. Steeping time: cover and let steep for at least 10-15 minutes; for a more complete extraction of active ingredients, you can extend up to 20 minutes.
  4. Straining: use a fine mesh strainer to separate the liquid from the bark residues.
  5. Complementary flavors: to improve the taste, which can be slightly bitter, you can add a piece of lemon or orange peel, or a pinch of cinnamon or fennel.
  6. Sweetening: if desired, sweeten with a teaspoon of acacia or linden honey, which adds soothing properties without altering the effectiveness of the herbal tea.

The buckthorn herbal tea has a characteristic amber color, which shifts to reddish tones as the steeping time increases. The aroma is intense and slightly earthy, with woody notes that tell the story of this bark with ancient virtues. The ideal time to consume it is in the evening, about an hour before bedtime, considering that the laxative effect generally occurs 8-10 hours after consumption.

For detox cycles, you can alternate buckthorn with other plants with similar properties but different mechanisms of action, such as mallow, marshmallow, or flax seeds, creating a personalized and gentle intestinal wellness program.

A well-made buckthorn herbal tea always starts with quality bark, dried and aged just right. If you don't want to risk products that are too fresh or ineffective, at Terzaluna you can find ready-to-use buckthorn bark, perfect for infusions and decoctions. Buy it now and prepare your herbal tea the right way!

  • Laxative properties
  • Herbal tea blend
  • From wild harvesting
3,50€
Buy

Contraindications of Buckthorn

Buckthorn, despite its valuable therapeutic properties, is not suitable for everyone and in some specific situations, its use must be absolutely avoided. Knowing these contraindications is essential for a safe and informed approach to this natural remedy.

Buckthorn bark, with its powerful action on the intestinal system, requires particular caution in various conditions. Firstly, it is categorically not recommended during pregnancy and breastfeeding, periods when the female body needs special protection. Its use is also contraindicated for children under 12 years, and in any case, it is always necessary to consult a pediatrician before administering any buckthorn-based product to young children.

Those suffering from inflammatory bowel diseases such as colitis, Crohn's disease, diverticulitis, or irritable bowel syndrome should avoid this remedy, which could worsen symptoms and intensify inflammation. Similarly, conditions like intestinal obstruction, appendicitis, inflamed hemorrhoids, or perianal fistulas are absolute contraindications to the use of buckthorn.

Particular attention should be paid in cases of abdominal pain of unknown origin: in these situations, taking laxative remedies like buckthorn could mask important symptoms and delay necessary diagnoses. Even during the menstrual cycle, especially if painful, it is preferable to avoid buckthorn bark, which could intensify cramps and discomfort.

People with kidney problems, particularly glomerulonephritis, should consult their doctor before using this remedy, as should those suffering from gastritis or peptic ulcer, conditions in which the irritation caused by the plant's active ingredients could be problematic.

Equally important is the aspect of allergies: those with known sensitivity to plants of the Rhamnaceae family should refrain from using any buckthorn-based preparation to avoid potentially serious allergic reactions.

In all cases of doubt, it is always advisable to consult with a doctor or a qualified herbalist before starting treatment with buckthorn bark, favoring a personalized approach that takes into account your medical history and any ongoing pharmacological therapies.

Side Effects

Although buckthorn is an effective natural remedy, it can cause some undesirable effects that are important to know before using it. The intake of preparations based on buckthorn bark can cause gastrointestinal disturbances of varying intensity, mainly manifesting as abdominal pain and diarrhea. In some particularly sensitive individuals, episodes of vomiting may also occur, especially when the herbal drug is not properly dried.

A particularly critical aspect concerns the prolonged use of this natural remedy. Continuous intake of buckthorn can cause a significant loss of electrolytes, particularly potassium, leading to hypokalemia. This condition occurs when potassium levels in the blood fall below the normal threshold, compromising proper muscle and nerve function.

The consequences of excessively prolonged use are not limited to electrolyte imbalance but can also extend to the urinary system, with the risk of developing nephropathies. Continuous loss of mineral salts can also promote the appearance of edema and, in more severe cases, accelerate the process of bone deterioration, resulting in the weakening of the skeletal structure.

It is essential to pay attention to the signals the body sends during the intake of buckthorn bark. The appearance of persistent abdominal cramps, prolonged diarrhea, or other gastrointestinal disturbances is a clear invitation to discontinue treatment and consult a health professional. These side effects, although generally transient, can become problematic if underestimated or ignored.

To minimize the risk of undesirable effects, it is advisable to start with reduced dosages, checking the individual response, and limit the use of buckthorn to short and well-defined periods, avoiding continuous use that can lead to habituation, making it necessary to increase doses to achieve the same laxative effect.

Drug Interactions

Buckthorn, with its powerful anthraquinone derivatives, can significantly interact with various drugs, creating potential risks for those undergoing pharmacological therapies. The most relevant interactions concern digitalis glycosides like digoxin, used for heart problems, where the potassium loss caused by buckthorn can amplify the drug's effects, increasing the risk of arrhythmias and other cardiac disorders.

The interaction with diuretics, especially those that do not spare potassium, is particularly delicate. In this case, the combined effect can cause a dangerous electrolyte depletion, with potentially serious consequences on the body's hydro-saline balance. Concurrent intake of buckthorn bark and oral contraceptives also requires caution, as the laxative effect can reduce the absorption of the contraceptive pill, compromising its effectiveness.

An often underestimated aspect concerns buckthorn's ability to reduce intestinal absorption of orally administered drugs. This phenomenon occurs because the acceleration of intestinal transit caused by the plant's active ingredients can prevent the complete absorption of pharmacological substances, reducing their therapeutic effectiveness.

For those taking anticoagulant or antiplatelet drugs, particular caution is necessary, as alterations in intestinal absorption can affect the blood levels of these medications, with potential hemorrhagic or thrombotic risks. Similarly, drugs for blood sugar control may experience variations in their bioavailability when associated with buckthorn.

The golden rule to avoid problems is simple but essential: always consult your doctor before combining any buckthorn-based preparation with ongoing drug therapies, even when it comes to over-the-counter or seemingly harmless medications. This precaution becomes even more important for those undergoing chronic treatments or taking multiple medications simultaneously, situations where the risk of interactions increases exponentially.

glasses of buckthorn infusion with a bowl of berries

Where to buy buckthorn bark: at Terzaluna!

Buckthorn, this precious ally for intestinal well-being, deserves to be chosen with care and awareness. Recognizing quality bark is essential to ensure all the benefits of this natural remedy: it should have a uniform gray-brown coloration, free from mold or alterations, and retain its characteristic slightly bitter aroma. To the touch, good buckthorn bark feels dry but not brittle, a sign of proper drying that preserves its active ingredients.

At Terzaluna, we have passionately and rigorously selected the best buckthorn barks available, following a sourcing process that respects both the plant and the environment.

Our buckthorn bark comes from sustainable harvesting in pristine areas, where the plant grows spontaneously, absorbing all the nutrients of its natural habitat.

Quality makes the difference in this journey, and we at Terzaluna are committed every day to ensuring you can rely on authentic, effective products that respect herbal tradition, to gently and naturally restore your body's balance and harmony.

  • Laxative properties
  • Herbal tea blend
  • From wild harvesting
3,50€
Buy

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