Completely harmless to your health. Cotton is only from controlled eco-bio-farms. Hypoallergenic. 100% chemical-free.
If you use TAMPON, the most important point is that you must put something of completely harmless, healthy material into your body. Which is nothing else but Organic Cotton!
If you are using PAD, the menstrual fluid goes outside of your body, so you need your pad to be the best at: slim-breezy-dry wear, exceptional absorbency, antibacterial property, and of course chemical free.