How Does Skin Whitening Cream Work? A skin whitening cream works by inhibiting melanin production, the pigment responsible for skin color. Excess melanin can cause hyperpigmentation, dark spots, and uneven skin tone. Most skin whitening creams contain active ingredients that: ✔ Reduce melanin production for a lighter complexion✔ Fade dark spots, acne scars, and pigmentation✔ Enhance skin...