What makes Kneipp® Mineral Bath Salt unique from all others? The source for Kneipp® Mineral Bath Salt is an ancient underground salt water sea in central Germany that is the last remaining salt works in Europe, extracted using traditional pan-boiling methods, the salt crystals are removed from the thermal brine by heating it in large pans, allowing the liquid to evaporate naturally. The unique crystal form which results naturally absorbs the essential oils until released into a warm steamy bath. The crystals are free from chemical additives and environmental pollutants. Kneipp® Mineral Bath Salt is naturally very high in trace minerals such as Magnesium, Calcium and Zinc, which are absorbed by the body while soaking in your tub. The perfect body treatment to detoxify, exfoliate, tone and increase elasticity. Activated by warm water, these enriched salts help build resistance to daily demands. The essential oils’ therapeutic effects benefit body and mind through skin absorption and inhalation while water‘s natural therapeutic effect augments the essential oils efficacy.