Witch hazel: benefits, dosage, contraindications

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Witch hazel is a shrub native to the forests of the United States and Canada. Witch hazel, often mistaken for the hazel because of its resemblance, is characterized by multi-stemmed growth and oval leaves with toothed margins. One of the most notable features of witch hazel is its winter flowering. Small bright yellow flowers appear as early as autumn - for some species - before the leaves. The leaves and bark are the parts of the plant used medicinally. The active components include gallotannins such as hamamelitannin, gallic acid, myricetin, quercetin, kaempferol, and catechol derivatives. The bark and leaves are both a source of volatile essential oils. The leaf contains 8 to 10% tannins, while the bark contains up to 12%. Steam distillation used to produce witch hazel water removes the tannins. Thus, the astringent properties of witch hazel water result from its alcohol content of 14 to 15%. To ensure their effectiveness, extracts of the leaves and bark must contain at least 3% tannins expressed as pyrogallol. In preparations, leaf and bark extracts and witch hazel water are used as astringents and hemostatics (promoting blood clotting). Witch hazel is traditionally used for venous insufficiency and mild skin inflammations, whether applied topically or taken orally.

Other name(s) 

Witch hazel

Scientific name(s)

Hamamelis virginiana

Family or group: 

Plants

Active ingredients:

Tannins

Flavonoids

Rutin

Quercetin


Indications

Scoring methodology

EFSA approval.

Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with consistently positive conclusions for the indication.
Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with positive conclusions for the indication.
One or more randomized studies, or several cohorts or epidemiological studies, with positive conclusions for the indication.
Clinical studies exist but are uncontrolled, with conclusions that may be positive or conflicting.
No clinical studies to date that can demonstrate the indication.


Dermatoses
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Topical application of a witch hazel cream relieves mild skin irritation. In children, the use of a witch hazel ointment appears to improve symptoms associated with skin lesions or dermatitis as effectively as a dexpanthenol ointment. The EMA recommends witch hazel to relieve minor skin inflammations and dry skin. ESCOP indicates that witch hazel water is used externally in the treatment of bruises, skin irritations, sunburn, insect bites, and, more generally, minor inflammatory conditions of the skin and mucous membranes.

Posologie

posologieTopical use: leaf

duration1 - weeks

populationChildren, Adults, Seniors

formulationlotion, liquid extract


Hemorrhoids
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Topical application of witch-hazel water may help temporarily relieve itching, discomfort, irritation, and burning associated with hemorrhoids. Suppositories equivalent to 0.1-1 g of leaf and bark or to 400 mg of liquid extract, taken 1 to 3 times per day, have been used. Witch-hazel water, up to six times a day or after each bowel movement, may also be useful to relieve inflammation associated with hemorrhoids. ESCOP states that witch-hazel water is used externally in the treatment of hemorrhoids.

Posologie

posologieTopical: leaf

posologie400 - 1200 mg

duration2 - weeks

populationAdults, Seniors

formulationlotion, liquid extract


Stomatitis
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Witch-hazel is used as a mouthwash, gargle, or orally to relieve minor inflammation of the mucous membranes of the oral cavity (EMA, ESCOP).

Posologie

posologieOral: leaf, bark

posologie2 - 4 mL

duration1 - weeks

populationAdolescents, Adults, Seniors

formulationlotion, liquid extract


Skin healing
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In relation to its microcirculatory properties, witch hazel is recommended in cases of capillary fragility associated with delayed skin healing.

Posologie

posologieTopical, oral: leaf

posologie2 - 10 g

formulationMother tincture, liquid extract


Heavy legs
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In relation to its microcirculatory properties, witch hazel is recommended for venous disorders and their complications: heavy legs, restless legs syndrome, post-phlebitic syndrome, varicose ulcers, edema, trophic disorders, delayed skin healing.

Posologie

posologieTopical, oral: leaf, bark

posologie2 - 10 g

formulationMother tincture, liquid extract


Varicose veins
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In relation to its microcirculatory properties, witch hazel is recommended in cases of capillary fragility: spider veins, couperose (facial redness), bruises

Posologie

posologieTopical, oral: leaf, bark

posologie2 - 10 g

formulationMother tincture, liquid extract


Properties


Astringent

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Witch hazel is used as a treatment for circulatory disorders to tone the walls of blood vessels. It has been shown in vivo that witch hazel inhibits the activity of α-glucosidase and human leukocyte elastase, enzymes that contribute to the degradation of connective tissue. Thus, witch hazel would help preserve vascular integrity, thereby conferring an astringent action. The astringent action of tannins on the intestinal mucosa may give it antidiarrheal properties by slowing intestinal peristalsis.

Usages associés

Skin healing

Microcirculatory effect

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The witch hazel fluid extract is the galenic form most active in terms of vasoconstrictive activity. Official tinctures appear less active. One study demonstrated that the vasoconstrictive action is essentially due to the proanthocyanidins found in the leaves. Other studies have shown that tannins, when applied locally to damaged skin or mucous membranes, cause protein precipitation. They tighten the superficial cellular layers and shrink colloidal structures, thereby causing capillary constriction.

Usages associés

Hemorrhoids, Heavy legs, Varicose veins, Skin healing

Anti-inflammatory

full-leaffull-leafempty-leafempty-leaf

The leaf and bark of witch hazel have anti-inflammatory properties in animal models. Laboratory research has shown that constituents such as hamamelitannin and galloylated proanthocyanidins inhibit 5-lipoxygenase activity. In addition, tannins applied locally to damaged skin or mucous membranes induce protein precipitation. They tighten the superficial cell layers and reduce colloidal structures, thereby causing constriction of capillaries. The reduction in vascular permeability is similar to an anti-inflammatory effect. The anti-inflammatory effects of witch hazel could explain its anti-hemorrhoidal and skin-protective effects.

Usages associés

Dermatoses, Hemorrhoids, Stomatitis

Antimicrobial

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The leaf and bark of witch hazel possess astringent properties. The antibacterial effects of witch hazel extract have been demonstrated by laboratory research. The astringent activity of the tannins produces an indirect antibacterial effect.

Usages associés

Stomatitis


Safe dosage

Adults 18 years and older: 2 g - 10 g (aqueous decoction)

- In liquid extract: with 20% witch hazel extract, several times a day. - In tincture: with 5-10% witch hazel extract, several times a day. - In decoction to soak a dressing: 5 to 10 g of extract for 250 ml, up to 3 times a day.


Precautions

Children up to 6 years: avoid

The use of witch hazel in children under 6 years is not recommended.

Pregnant women: avoid

Due to insufficient information: avoid use.

Breastfeeding women: avoid

Due to insufficient information: avoid use.

Children 6 to 18 years: use with caution

Use in children over 6 years of age and in adolescents has not been established.