Our underarm whitening soap contains activated bamboo charcoal, niacinamide, allantoin. It can treat acanthosis nigricans, repair and moisturize skin, fade melanin, lighten skin tone, repair and moisturize dull, dry skin. Its use is simple: rinse and moisten the whole body, lather the product with a foam mesh, apply it to areas that need cleaning and whitening, and use a bath ball or massage bath to magically pull it back and scrub it; Rinse off the foam, the effect varies from person to person, and you'll see results if you stick with it. Helps moisturize the skin, resulting in less dryness and pigmentation, healthier skin and a more even complexion; Lighten dark pigmentation, repair and moisturize skin for a more even and radiant complexion.