Most sanitary products are not made of cotton – many brands are made of mostly synthetics like rayon. Feminine pads from many of the best known brands also contain something called SAPs (Super Absorbent Powders). While doing their job to absorb better, SAPs are made from polymers that are derived from crude oil. Think how close those SAPs will be to you. Tampons and pads often also contain wood pulp – it’s not what you expect, but it’s what you’re probably using. Wouldn’t you prefer cotton? Organyc contains no synthetics, no SAPs, no wood pulp and is bleached only in hydrogen peroxide, a naturally occurring disinfectant.