The National Institutes of Health explain that acne can be triggered by cosmetics, especially those that are greasy or oily in nature. Oil-based makeup clogs the pores, which can lead to development of soft plugs within the hair follicles. This elicits inflammation within the walls of the follicle, causing the papule or pustule associated with acne.
Cosmetics
To ensure that cosmetics won't lead to acne, the American Academy of Dermatology recommends using only products labeled as noncomedogenic or nonacnegenic. By definition, these products are scientifically proven not to cause blackheads, whiteheads or pimples. Instead of oil, the main ingredient is typically water, distilled water, mica or titanium dioxide, which shouldn't clog your pores.
Makeup Removal
It's important to remove makeup prior to bed, according to the Mayo Clinic. Even noncomedogenic or nonacnegenic cosmetics should be washed off your skin with warm water and a gentle cleanser each night. This ensures that your pores won't become clogged, irritated or inflamed by the other ingredients, resulting in acne.
Bacterial Buildup
Besides sticking to water-based cosmetics and removing makeup prior to bed, the Mayo Clinic suggests throwing out old makeup. Over time, your cosmetics can actually gather bacteria, so consider tossing old and outdated makeup at least once a year. By applying old cosmetics to your face, you're exposing your skin to bacteria that could lead to acne. It's also important to clean brushes, sponges and other applicators with regularity. Warm, soapy water is all that's necessary to clean your makeup utensils.
Self-Care
If you still develop acne as a result of makeup, you can often improve the condition of your skin with self-care measures. Washing problematic areas twice a day and applying an over-the-counter acne cream are both beneficial components to self-care. You should also watch what touches your face, advises the Mayo Clinic. Phones, glasses, hats, hair and collars can all contribute to acne.
Treatment
For moderate to severe acne as a result of cosmetics, retinoids can help to clear up the skin. Tretinoin is one of the more common retinoids, but your doctor or dermatologist may prescribe adapalene or tazarotene to treat your condition. These products minimize the obstructions causing your acne as well as promote cellular turnover. Antibiotics, oral contraceptives, corticosteroids and skin rejuvenation treatments, such as chemical peels and microdermabrasion, may also help to clear the skin, according to the American Academy of Dermatology.



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