Herb Library: Natural Herbs and Herbal Supplements Directory: Eyebright





This fact sheet provides basic information about Eyebright. Eyebright is an attractive weed that grows in fields and meadow areas of most temperate climate regions of the world. Eyebright is a parasitic plant that must attach its roots to the roots of other plants in order to survive. Nearly all of the eyebright sold on the market is produced in Europe.

Common Names


Latin Names

Euphrasia officinale

What It Is Used For

  • Treating respiratory conditions including bronchitis, allergies, colds, and sinusitis. Eyebright contains astringent compounds known as tannins that may help to tighten the top layers of mucous membranes, thereby reducing mucus secretion, which in turn relieves irritation and improves tissue firmness.
  • Eyebright has also been used as an eye wash for treating a number of different eye conditions.

How It Is Used

For use orally, eyebright is commonly prepared as a tea. Usually, 2,000 mg to 4,000 mg of dried eyebright herb is added to about 5 ounces of boiling water and allowed to soak for approximately 10 minutes. The solid particles remaining are then strained out of the tea in preparation for drinking.

What the Science Says

  • There are no recent clinical studies of eyebright to provide a basis for dosage recommendations. The herb is typically applied topically.

Side Effects and Cautions

  • Note: Eye drops and eye washes should be packaged commercially under sterile conditions.


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