Our Black Bian Stone Gua Sha tool, also known as the empress stone, is a unique and highly effective addition to your skincare routine. Rich in over 40 essential minerals, including calcium, magnesium, and iron, this tool has already won over beauty industry influencers and is ready to conquer your cosmetic bag. Although small, our Black Bian Stone Gua Sha tool is proven to deliver impressive results, including reducing puffiness, minimizing the appearance of fine lines, and improving skin tone.