Sure, we've all heard the typical advice for those seeking clear skin: wash regularly, keep your hands off your face, don't pick at your zits, etc. However, there are a number of causes and contributors to acne that are not quite so well known. If you have sensitive skin that is prone to acne, it helps to be aware of some of these factors that often go unnoticed.

Besides creams and cleansers, what other products often come in contact with your skin? If you use makeup, taking care to apply it lightly and using only non-comedogenic products (products that will not clog your pores) should be a natural first step. For men that use aftershave, similar care should be taken not to use aftershaves that contain alcohol or other ingredients that could dry out your skin.

What are less commonly considered are those products that indirectly affect your skin, such as hair gels. Hair styling products are usually full of ingredients that can have negative effects on your skin. If you use these products on a regular basis, make sure to minimize their contact with the skin on your face. Try not to work these products in directly against the skin of your scalp, and always wash clean the skin along your hairline after applying a hair styling product. These products can also run down into the skin of your face and forehead when you sweat, so if you plan on exercising try to apply hair products lightly and wash the effected area afterward.

Speaking of sweat, the buildup of sweat against your skin, particularly when your pores cannot breathe due to sweaty clothing, can lead to acne. When trapped against the skin, sweat provides a perfect situation for bacteria to grow. Always change out of sweaty clothing quickly after you're done exercising, especially if the clothing is tight.

Sweat and a lack of letting your pores breathe can affect you even without vigorous exercise. Do you spend a large part of the day sitting in front of a computer? If so, you may be inviting back acne if your back is always pressed against a chair. The heat and moisture that build up will lead to bacteria.

What about your diet? Many people notice that certain oily or sugary foods lead to a breakout the next day. This is because your metabolism is busy breaking down those foods instead of your excess skin oil. Minimizing junk food is always good advice, but what many don't consider is another type of food that can have similar results for your skin.

Processed grains, such as found in processed breads and cereals, are easily broken down in the body and can lead to elevated insulin levels, which have been linked with acne. If you want to maintain a clear skin diet, many dermatologists recommend limiting your intake of processed grains. Instead, eat more fruits and vegetables, as these are rich in nutrients essential to healthy skin. A low-carb Atkins-like diet may be just the ticket for acne sufferers.

Another factor for your diet is to simply drink more water. Water helps flush out the toxins in your cells that can lead to acne, and keeps your skin cells full and supple. It is recommended that adults drink about eight glasses of water every day.

Since your skin can be affected by so many things, maintaining clear skin means taking a complete look at your lifestyle. Make sure you're treating your skin right inside and out.