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What Is Arnica 30C?

author image Melanie Grimes
Melanie Grimes has been an integrative medical writer, editor and international lecturer since 1990. She teaches at Bastyr University's American Medical College of Homeopathy. The founding editor of the "American Homeopath," she currently edits "Simillimum," the Journal of Homeopathic Association of Naturopathic Physicians. She is also an award-winning screenwriter and published essayist. She attended Barnard, National College of Natural Medicine and Bastyr University.
What Is Arnica 30C?
Homeopathy Photo Credit Patricia Chumillas Rodriguez/iStock/Getty Images

Arnica 30c is the designation of the 30th centesimal potency of the homeopathic remedy Arnica montana. Arnica is made from the Arnica plant that grows in European mountains and North America. The plant has a long history in healing, dating back to the 1500s and to Native American healers. It is used for sprains and bruises and in treating the pain of arthritis, according to the University of Maryland Medical Center.

Arnica Plant

Arnica is a perennial plant. It is a member of the Asteraceae family, the same family as sunflowers. Arnica also displays yellow flowers in the spring that have a slight smell. It is cultivated for medicinal use. The dried flowers are the part utilized in medicine. Tinctures of the plant's flowers are made into homeopathic Arnica 30C.

Arnica Indications

Arnica can be used to treat numerous conditions, according to the University of Maryland Medical Center. It is used for sprains, bruises, muscle aches, rheumatic pain, inflamed insect bites and swelling.

30C Potency

The designation 30C refers to the amount of dilution used to prepare a homeopathic remedy. To create Arnica 30C, one part Arnica tincture is added to 99 parts of distilled water. This is called a 1C dilution. After homeopathic processing, one part of this mixture is added to 99 parts of distilled water. This is the 2C dilution. The process is repeated 30 times, until the 30C dilution is reached.

Taking Arnica 30C

Arnica can be applied to the skin via a variety of creams and ointments. It can also be taken internally. It is recommended for use in the treatment of bruising. Bastyr University and Center for Natural Health recommends Arnica for "post-traumantic discomfort and bruising."

Arnica Research

Arnica montana has been the subject of a great deal of medical research. In both tincture form and 30C potency, the action of Arnica on bruising and muscle pain has been reviewed in peer review journals. Studies have investigated Arnica's effect on carpal tunnel, inflammatory disease, osteoarthritis and bruising. Research conducted at the Department of Rheumatology, Valens Clinic for Rheumatism, in Switzerland, showed that Arnica decreased the pain and stiffness associated with osteoarthritis. The study was conducted on 26 men and 53 women with osteoarthritis of the knee. Arnica gel was applied twice a day for six weeks.


Consult with a medical professional when beginning any new treatment. Ask a professional homeopath for advice on treatment with Arnica 30C.

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