No, hydrogen water itself is not considered dangerous. However, it is important to choose the right equipment to ensure that you ingest it safely. Not all bottles are created equal - some cheap options may not meet safety standards and may actually be risky to use. (Can produce ozone gas and fluoride) For your safety, invest in a hydrogen water bottle with a solid safety profile. A good rule of thumb is to choose bottles that use the DuPont 117 membrane, known for its high quality and safety. Nord Hydrogen is an example of a brand that uses this membrane, ensuring that you are not only getting clean and safe hydrogen water but also investing in a product that is built to last. So, stay away from the gimmicks and invest in something that truly protects your health and well-being.