Group 1 - The topic of "Cotton Password sanitary napkins detected with carcinogens" has gained significant attention, with the brand's flagship store maintaining an average positive rating of 97% on online platforms [1] - Multiple batches of Cotton Password sanitary napkins, including night and day use products, have been found to contain high levels of thiourea, with one product showing a thiourea content of 16653.4679 μg/g [1] - Thiourea is classified as a Group 3 carcinogen by the International Agency for Research on Cancer, indicating potential health risks from long-term exposure [1] Group 2 - The brand Cotton Password was founded in 2017 by influencer Xinba (Xin Youzhi) and is part of the Xin Xuan Group, focusing on women's hygiene products [2] - Cotton Password claims to use tea polyphenol chips in their sanitary napkins, promoting antioxidant benefits, and offers various product lines including tea oxygen series and cherry blossom series [2]