Japanese indigo, also known as Indigo naturalis, is a botanical extract that has been traditionally used in Chinese, Japanese, and Korean medicine. It is known for its soothing and anti-inflammatory properties, which have made it popular in skincare products for conditions like psoriasis and eczema. However, its use in dental care is not well-documented. While Japanese indigo has shown potential in reducing inflammation and irritation in skin conditions, there is limited research on its effectiveness and safety for dental issues. If you are considering using Japanese indigo for dental purposes, it is essential to consult with a dental professional first. They can provide guidance based on current research and ensure that it is safe for your specific needs. Always prioritize professional advice over anecdotal evidence when it comes to dental health.