TerraCalm is a French antifungal mineral mud support cream designed to promote healthy skin and nails. This formula uses powerful natural ingredients. Check out its benefits, user reviews, cost, where to buy, and more. What is TerraCalm Exactly? TerraCalm is a specially formulated natural product from far away lands that provides healthy rosy nails. The powerful natural ingredients in the TerraCalm formula work wonderfully together to maintain beautiful skin, strong nails and a polished look. You have never experienced anything like using the TerraCalm formula. The only product that doctors recommend to improve your skin and nails is TerraCalm Lotion. The nourishing blend of TerraCalm products eliminates fungal diseases and improves the appearance of the skin. The nutritional ingredients in TerraCalm products are all natural and pure, derived from a nutrient-dense green extract with antifungal effects.