Scented tea itself has no side effects; You need to see if there are any additives in his formula; Or whether pesticide residues and heavy metals in his CMA test report exceed the standard; Generally speaking, farmers who grow scented tea now use pesticides to increase their production. If the farmland is next to chemical plants or pollutants, then the general heavy metals will exceed the standard; Therefore, if there are any side effects, please read the national CMA product quality report before drinking any products.