A 100% natural mineral sulfate, also known as ‘mineral salt’, mineral crystal is used in a variety of natural cosmetics and personal care products, including aerosols. Its molecules are crystalline, which is why it is also referred to simply as ‘crystal’. Possessing astringent and antiseptic properties, it is considered the most natural antimicrobial agent. It prevents the growth of bacteria that cause unpleasant body odors without being absorbed by the skin, making it an ideal choice for sensitive skin.