This is a very controversial topic in the yoni egg community. If you speak to anyone in the traditional Taoist lineage they will almost always tell you to use only Jade, or at least to start with Jade. At Yoni Crystals, we seek to understand and honor the lineage while also exploring womb wellness for the modern day woman. For us, this means implementing safe new methods and crystal types that may veer from tradition but ultimately feel more resonant to some women on their womb wellness journey. With that said, Jade is structurally 'less porous' than crystalline structures such as Rose Quartz. 2000 years ago when women did not have access to hot running water, Jade was the best stone to keep sanitary and safe for their internal use. Today, women do have access to hot running water and a wide array of organic, biodegradable soaps that can adequately cleanse more porous crystals and make them safe to use routinely. We’ve never personally experienced or heard of any infections caused by using rose quartz or obsidian internally instead of jade. Whatever the crystal you choose, always make sure to clean it before and after every use and it will be ready to use again. Many women simply are not called to the jade so we say, honor that. Tune in. Listen. Your womb holds wisdom and since its origin 2000 years ago, the yoni egg practice helps to develop connection with that wisdom.Note: There are crystals one should never use internally (malachite, lapis, chrysocolla, etc.) as they contain toxins that are dangerous to our bodies. Yoni Crystals only offers crystals that have been proven safe for internal use.