Herbal TherapyÂ™ LavenderÂ Bath Salts Calming 100% Essential Oil Paraben Free No Synthetic Fragrances "Peace to All, Life to All, Love to All!" Cruelty Free No Animal Testing No Artificial Coloring Made in USA History of Bath Salts Bath salts have been used for over 4,000 years. The earliest use has been traced back to 2700 BC in China. Dead Sea Salt - Contains 21 minerals, used for centuries to stimulate circulation, loosen tense muscles and joints, and soothe and soften the skin. Epsom Salt - Is a known natural remedy for relieving stress and the aches and pains of muscle strains. Evaporated Sea Salt - Is natural, from the sea, rich in minerals magnesium, calcium, and potassium. Mineral Salts - Of the more than three dozen known minerals, nineteen are necessary for good health. Mineral salts contain up to 10 essential minerals.