I am not aware of any serious scientific proof to the effects of rose water on acne. Rose water is one of the many "natural" acne remedies posted on the web. Many of these suggestions are biased by commercial interests or just lack of knowledge. There so many good and prove ways to treat acne effectively. Use your app to assess your skin and get specific suggestions that match the American academy of Dermatology acne treatment guidelines.
To find the right acne treatments for your unique skin, take the free skin assessment by clicking here.