Yes it is hygienic to share the Pebbl. We've designed a range of colours to meet everyones preference if you'd rather not share and want a Pebbl for all the family, but Pebbl uses non-porous food-grade silicone so it doesn't trap and grow bacteria. Unlike a sponge or the brisltes on your toothbrush, Pebbl doesn't need replacing because of bacteria growth. A simple rinse at the end of your wash makes it fine for the next person to use as long as they don't find it icky!