Witch Hazel Drug Interactions, Uses, Effectiveness, Safety & More

Witch hazel is a remedy made from the bark, leaves, and twigs of the Hamamelis virginiana shrub, a plant native to eastern North America. It has been used in traditional and folk medicine for a very long time, mainly applied to the skin.

The most familiar form is the clear liquid sold in drugstores, often called witch hazel water or distilled witch hazel. It is also found in gels, creams, wipes, pads, and hemorrhoid products. People use it as an astringent, meaning it can make skin tissue feel tighter and help dry up minor weeping or irritation.

Witch hazel is rich in plant compounds called tannins, along with other substances like flavonoids and small amounts of volatile oils. Tannins are thought to be responsible for its astringent effect, helping tissues contract and reducing minor oozing.

Laboratory and animal research suggests witch hazel may have anti-inflammatory and antioxidant properties and may help tighten skin and small blood vessels. It is important to know that much of this is based on lab studies rather than large human trials, so the real-world benefits are not fully proven.

Note that distilled witch hazel water (the common drugstore product) contains little to no tannins, since they are largely removed during distillation, while alcohol is often added.

Witch hazel is generally considered safe for short-term use on the skin for most adults. It is intended for external use only and should not be swallowed, because the tannins it contains can upset the stomach and may be harmful in larger amounts.

People with very sensitive skin or known allergies to witch hazel should be cautious, and you should avoid using it on deep wounds, severe burns, or broken skin unless a doctor tells you to. Many liquid products also contain alcohol, which can dry out or sting the skin.

For pregnancy and breastfeeding, there is not enough reliable safety information. Topical use on small areas is likely low risk, but it is best to ask your doctor first, avoid taking it by mouth, and avoid applying it to the nipple area while nursing. Keep witch hazel products out of reach of children and away from the eyes.

When used on the skin, witch hazel is usually well tolerated. The most common side effects are mild skin irritation, dryness, redness, or stinging, especially with alcohol-containing products or on sensitive areas.

Rarely, some people develop an allergic skin reaction (contact dermatitis) with itching, rash, or swelling. If this happens, stop using it. If swallowed, witch hazel may cause nausea, stomach upset, or, in large amounts, liver concerns from its tannin content. Seek medical help if a large amount is accidentally ingested.

There is no official standardized dose for witch hazel. The right amount depends on the product and the form, such as a liquid, gel, pad, or ointment.

The safest approach is to follow the directions on the product label and use it only on the skin as directed. For hemorrhoid pads or creams, follow the package instructions. If you are unsure how often to use it or whether it is right for your situation, ask your pharmacist or doctor. Do not take witch hazel by mouth unless a healthcare professional specifically advises it.