Period is 100% safe. In fact, we have a sneaky suspicion that those articles trying to suggest the brands on the market were actually paid for by conventional menstrual brands that are afraid of how period underwear might change the whole world. But back to the details, our products are 3rd party tested by Intertek to make sure we are organic and toxin free. See our material section for more details.
BTW do you know the FDA has 400 defect warnings about tampons? Yikes.