Reiki touch therapy is a complementary biofield energy therapy that involves the use of hands to help strengthen the body's ability to heal. There is growing interest among nurses to use Reiki in patient care and as a self-care treatment, however, with little supportive empirical research and evidence to substantiate these practices. The purpose of this integrative review is to begin the systematic process of evaluating the findings of published Reiki research. Selected investigations using Reiki for effects on stress, relaxation, depression, pain, and wound healing management, among others is reviewed and summarized. A summary of Reiki studies table illustrates the study descriptions and Reiki treatment protocols specified in the investigations. Synthesis of findings for clinical practice and implications for future research are explored.

Vitale A. Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, USA. annern2@gmail.com Holist Nurs Pract. 2007 Jul-Aug;21(4):167-79; quiz 180-1.

INTRODUCTION: Herbal products have gained increasing popularity in the last decade, and are now used by approximately 20% of the population. Herbal products are complex mixtures of organic chemicals that may come from any raw or processed part of a plant, including leaves, stems, flowers, roots, and seeds. Under the current law, herbs are defined as dietary supplements, and manufacturers can therefore produce, sell, and market herbs without first demonstrating safety and efficacy, as is required for pharmaceutical drugs. Although herbs are often perceived as "natural" and therefore safe, many different side effects have been reported owing to active ingredients, contaminants, or interactions with drugs. RESULTS: Unfortunately, there is limited scientific evidence to establish the safety and efficacy of most herbal products. Of the top 10 herbs, 5 (ginkgo, garlic, St. John's wort, soy, and kava) have scientific evidence suggesting efficacy, but concerns over safety and a consideration of other medical therapies may temper the decision to use these products. CONCLUSIONS: Herbal products are not likely to become an important alternative to standard medical therapies unless there are changes to the regulation, standardization, and funding for research of these products.

J Gen Intern Med. 2008 Jun;23(6) Bent S. Osher Center for Integrative Medicine, University of California, San Francisco, CA, USA. Stephen.Bent@ucsf.edu