I will be adding to this post.
I was asked to research rose water because a company is selling it as a drink with what the inquirer considers to be some very questionable claims. I agree!
A problem in identifying a reaction to a product or ingredient can be labeling, which can have different names for identical ingredients. A significant problem is company, quack use of preliminary animal, questionable human studies to make false or misleading claims, with no cautions.
Dose makes the poison. The amount of something normally used in food is not the same as that used medicinally, or as a replacement for other fluids to ingest. With the "jury still out" on health benefits, safety, and dosage, it is not a good idea to overconsume any rose water drink for ANY reason at all!
Interesting and honest
"“Methyl eugenol in rose oil is an absolutely amazing preservative,”...”But because tests in rats showed carcinogenic effects on the liver, rose oil has been restricted to the point that it’s almost impossible to use. ... maximal allowed concentration of methyl eugenol in leave-on products is only 0.0003%.”"