The chemical compound beta-carophyllene was found to improve the healing process of skin wounds in mice when topically applied, according to a new study. In addition to aiding in healing, the chemical compound was also found to heighten gene expression in hair follicles and stem cells in the treatment area, according to investigators. The study, published online ahead of print in the journal PLOS One (Dec. 16, 2019), is the first of its kind to find evidence that this chemical compound may increase wound healing in the skin of mice.