The aging of the skin is actually caused by too much exposure to the sun as well as the loss of hormones such as testosterone and estrogen. These two processes lead to the oxidation of collagen and the elastin fibers of the skin. The loss of these two substances in the skin will result to dimples on the skin and of course the sagging. This can be a problem as sensitive skin gets easily irritated when in contact with harsh ingredients and abrasive objects. This makes choosing of facial products all the more difficult and crucial. Still, there are basic tips that one must know in taking care of the skin. 1. Never ever sleep while still wearing your make-up This is perhaps the most cardinal rule when it comes to facial care. One would be the darkening of skin areas on skin folds all over the body, most especially the neck area, underarms, elbows, knees and nose. For some, it also shows on both sides of the lips and eyelids, sometimes even around the eye sockets. These skin darkening processes are the results of obesity in the body and no amount of skin care or cleansing can remove these, unless there is a change in lifestyle, like food intake and eating habits. Good thing is, there s always a chance to make a good start. And you can do this by knowing what foods are exactly beneficial to the skin. Here s a quick rundown: Omega-3 rich fish This includes salmon, mackerel, tuna, and other oily fish. Other than benefiting the heart, omega-3 fatty acid is good for the skin. Since this food group, once broken down into the system, can do more harm than good and will not just affect the appearance of the skin, but also have its damaging effects in the human body leading to high blood pressure, fatty liver, kidney diseases and even cancer. It would be better to focus on taking foods that are considered complex carbohydrates such as whole grains, wheats, oats, fresh vegetables and fruits among others. When choosing any skin care product, it is best that they contain water-based Vitamin A, C, and E because these are the most effective ingredients that can help reduce the signs of aging such as wrinkles, crow's feet and other fine lines. 3. Choose skin care products that have high concentrations of anti-oxidants and anti-inflammatory ingredients.