In this paper, we obtain individual difference on variation of melanin component which greatly affect apparent age. We consider frequency of use for UV protection as the factor causing individual difference in aging. It is known that the exposure of UV rays produces melanin pigment in our skin, which promotes aging of a skin such as darkening and unevenness of a skin color. In our previous work, we applied principal component analysis (PCA) to skin color pigmentation distribution and obtained feature values. By changing feature values, we simulated the appearance of human face in arbitrary age. According to this, it is revealed that melanin component in around cheeks especially tends to increase with aging. However, in the previous method, averaged feature values are used for each ages in analysis, and individual difference should be considered at the next step of research. In this paper, we constructed database that have facial image taken in 2003 and 2010 where the same 77 people were subjective. The frequency of use for UV protection was also recorded as lifestyle habit. By applying the same analysis in the previous method, we obtained score shift from the data in 2003 and 2010. From these trends of the shift, we found that one-fourth people can get lightskinned face after 7 years if they use UV protection throughout the year.