A recent NRS-supported study in twins has found a significant correlation between severity of rosacea and facial bacterial dysbiosis, potentially providing a basis for future research into what causes rosacea and how to treat it.

Genetics have long been thought to play a role in rosacea, but researchers have yet to isolate their influence. In one of the first studies of rosacea to measure and define genetic and environmental contributions, Dr. Daniel Popkin, assistant professor of dermatology at Case Western Reserve University, and colleagues have found that genetics and environmental factors may contribute equally to the disorder.