Koji Shine

Kojic acid and Niacinamide soap is commonly marketed for brightening the skin and improving uneven skin tone. Of the two ingredients, niacinamide has strong clinical evidence, while kojic acid is also supported for reducing hyperpigmentation, though it tends to work better in leave-on products than in soaps.

Potential benefits

• May help fade dark spots: Kojic acid can reduce melanin production, which may gradually lighten post-acne marks, sun spots, and other forms of hyperpigmentation.
• Can improve uneven skin tone: Niacinamide helps reduce the transfer of pigment within the skin, contributing to a more even-looking complexion over time.
• May brighten dull skin: The combination may make skin appear brighter with consistent use.
• Supports the skin barrier: Niacinamide helps strengthen the skin’s protective barrier and improve moisture retention.
• May help with acne marks: Niacinamide can reduce inflammation and may help improve the appearance of post-acne discoloration.
• Cleanses the skin: As a soap, it removes dirt, oil, and sweat while delivering some exposure to the active ingredients.