Human skin color is determined by the interaction of melanin, carotene and hemoglobin. Storage of water, fat, glucose and vitamin D is also a function of the integumentary system, according to the AAD.
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KEPP THPANK HW ACNKNRFH X-TRAIL 6 YEARS/120,000KM **Applies to each of the first 12 x 10,000km Scheduled Service intervals as detailed in the Ownerâs Handbook for up to 6 years (from Manufacturerâs Warranty start date) or the first 120,000kms (whichever occurs first) where vehicle is used in normal driving conditions.