Background: Plants from the Geranium genus, which comprises about 400 species, have been used
since ancient times in the practice of traditional medicines throughout the world. Therefore, herbal preparations
based on Geranium species have found wide usage for the treatment of a variety of ailments. The aim of this
work is to present a review, as comprehensive as possible, of the studies concerning different biological activities
of Geranium species.
Methods: Relevant data were obtained through systematic computer searches from major reputed scientific databases,
particularly Web of Science and Scopus. Occasionally, information issued in primary sources not covered
by these databases was also included provided published as peer-reviewed literature. This review covers the literature
disclosed till the end of 2018.
Results: Accompanying the increasing interest in herbal medicines in general, the evaluation of the biological
properties of medicinal plants from the Geranium genus has been addressed thoroughly, mostly over the last two
decades. Geranium species are endowed with a number of different biological activities. Herein, we present a
survey of the results of the studies concerning these different biological activities.
Conclusion: Most studies found in the literature effectively contribute to scientifically validate the beneficial
properties of Geranium plants claimed by traditional medicines and medical herbalism and demonstrate that many
of them possess evident therapeutic properties.