Detailed answer

Eye creams are specifically formulated for the delicate skin around the eyes. They contain ingredients that are gentle and safe for that area. Elbows, on the other hand, have thicker and tougher skin, and require a different approach for lightening dark spots. It is recommended to use specific products, such as creams or serums, that are formulated for body use and contain ingredients like glycolic acid, kojic acid, or vitamin C, which are more effective on tough skin areas like elbows. Using eye cream on the elbows may not provide the desired results and could be a waste of product. It is best to look for targeted products designed for the body to address dark spots on elbows.