Detailed answer

Melasma is a complex pigmentation disorder that typically involves larger areas of hyperpigmentation on the face. Spot treatments are designed for targeting individual spots or blemishes and may not effectively treat the larger affected areas of melasma. Furthermore, melasma is often caused by hormonal factors and deep within the skin, making it more difficult to treat with surface-level spot treatments. Consult with a skincare professional or dermatologist who can recommend a comprehensive treatment plan for managing melasma, which may include a combination of topical creams, chemical peels, laser treatments, and lifestyle changes such as sun protection.