To provide a dye exerting various effects such as fatigue recovering and health promotion or maintenance, and to provide a functional product by obtaining at low cost by such a simple means as coloration or impregnation with the dye.

This dye is produced by incorporating tourmaline powder and at least one substance selected from amethyst, quartz and granite in liquid such as wave energy-absorbed oil, water or an organic solvent. The functional product is produced by coloring or impregnating a piece of clothing, footwear, medical auxiliary, sheet material, sealing material, packaging material, woven fabric, nonwoven fabric, detergent, cosmetic, with the dye.