The main active in this product is sea salt itself. When it dissolves in warm water, it changes the feel of the bath and helps soften the outer layer of the skin. The practical result is that rough areas such as elbows, knees, and heels often feel smoother after bathing. The salt also helps loosen dead surface cells, which is why the skin can look more even and feel cleaner after a quick rinse.
This is a cosmetic bath salt for home use, not a skin treatment. Its role is to support surface smoothness and cleanliness and to make a bath feel more restorative. It does not change the skin at a deep level, and it is not intended to diagnose, treat, or prevent any disease. Because sea salt can leave a slight film after the bath, rinse briefly with clean water, pat the skin dry, and follow with a plain moisturizer while the skin is still slightly damp if you tend to feel dry. That last step is general body-care advice, not a requirement of this product.
If your skin is very sensitive or prone to inflammatory flare-ups, be cautious: use a smaller amount, keep the soak shorter, and stop if the bath seems to irritate. Avoid salt baths on damaged or broken skin, and wait until flare-ups calm down. For individual advice, especially if you have a chronic skin condition, talk to a medical professional before using mineral baths.