I had sore throat two days running after taking some. The next day i didn't have any and no sore throat.
I just bought a big bag too.
I will take some tomorrow and see if i have same reaction, then i will no for sure.
It could have just been coincidence as well. Maybe something else you were exposed to at the same time was causing your symptoms. Rosehips are great for C, building the adrenals and blood vessels, helping make hair healthier, etc. But I would not consider it really a cleanser.