How to whiten skin that is dull and yellow

Methods for lightening dull, yellowish skin mainly include the following points: 1. Internal and external regulation: Maintain good daily habits, including sufficient sleep and a regular diet as the foundation. In terms of diet, consume more foods rich in vitamins C and E—such as citrus fruits, kiwis, and nuts—which help combat oxidation and promote skin whitening. 2. Sun protection and moisturization: Daily sun protection is essential to prevent skin damage from ultraviolet rays. At the same time, keep the skin well-hydrated by using moisturizing products that lock in moisture, helping the skin stay supple, hydrated, and radiant. 3. Regular cleansing and exfoliation: Perform deep cleansing and exfoliation at least once a week to remove surface dirt and dead skin cells, promoting skin metabolism.