Celtic sea salt is the world's most sought-after variety. Originating from the coastal region of Guérande, France.It is also known as "French grey salt." Celtic Salt production employs a traditional method where seawater is allowed to evaporate, yielding mineral-rich crystals. Rich in crucial electrolytes such as sodium, potassium, and magnesium, Celtic sea salt is important for sustaining adequate hydration levels, nerve activity, and muscle function.