26. Get your SPF on. Sunscreen isn't just for summer—your skin needs protection every day, even in winter. There are now sunscreens for every skin type imaginable—even ones that help make your skin less oily, so your face stays matte and pimple-free! Look for a daily moisturizer with SPF that says it's "lightweight," "oil-free," or "oil-controlling." For the highest level, look for a PA++ rating, it covers both UVA and UVB rays, so you're guarded against everything from burns to future wrinkles!
No one factor causes acne. Acne occurs when sebaceous (oil) glands attached to the hair follicles are stimulated at the time of puberty or due to other hormonal changes. Sebum (oil) is a natural substance that lubricates and protects the skin. Associated with increased oil production is a change in the manner in which the skin cells mature, predisposing them to plug the follicular pore. The plug can appear as a whitehead if it is covered by a thin layer of skin, or if exposed to the air, the darker exposed portion of the plug is called a "blackhead." The plugged hair follicle gradually enlarges, producing a bump. As the follicle enlarges, the wall may rupture, allowing irritating substances and normal skin bacteria access into the deeper layers of the skin, ultimately producing inflammation. Inflammation near the skin's surface produces a pustule; deeper inflammation results in a papule (pimple); if the inflammation is deeper still, it forms a cyst.
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