The Sea Kelp Mineral Salts bring minerals and nutrients from the sea to your bath tub. Kelp is a nutrient-rich life form with minerals that draw toxins from the skin. Seaweeds aren't plants, they are algae. Algae provide much of the Earth's oxygen, they are the food base for almost all aquatic life and they revitalize the skin. Amazing! The Detoxifying and Immune Boost essential oil blends are perfect for this bath salt. Recommended usage: 1-4 tablespoons per bath. Add up to 1% essential oils. This bath salt has an inherent scent from the sea kelp.