HAKU Melanofocus IV, 20gWhitening serum (trial size) that suppresses melanin production and prevents age spots and freckles. Thorough research into the root causes of age spots. Prevents stubborn age spots. *Doesn't create or increase age spots. *Two types of whitening that address the root causes of age spots. *Active ingredients (4MSK*, m tranexamic acid**) suppress melanin production and prevent age spots and freckles. Active ingredient dipotassium glycyrrhizinate