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Article: Keratosis Pilaris

Keratosis Pilaris

If you have rough, sandpaper-like bumps on the backs of your arms or legs or other areas of your body, you may have keratosis pilaris or KP. While harmless, KP bumps can be unsightly and annoying and can be a long-term skin problem for both men and women. Luckily, there are some things you can do to get rid of KP bumps and maintain smooth, healthy-looking skin year-round.

Keratosis Pilaris What is Keratosis Pilaris?

Keratosis pilaris is a common skin condition that causes small, rough bumps to form. These bumps can be red or the same color as the rest of your skin tone, and they do not usually hurt or itch (except if your skin is dry).

Often confused with tiny goosebumps or acne, keratosis pilaris occurs when a skin-based protein [keratin] forms hard plugs within hair follicles.  The result is skin-colored bumps about the size of a grain of sand and a fine, bumpy texture. Some cases are accompanied by redness.

Keratin is an essential protein in your hair, skin, and nails. However, when too much keratin is produced, it can form small, scaly bumps on your skin. People with dry skin tend to be more susceptible to keratosis pilaris since dry skin flakes can become trapped inside pores, causing debris buildup and excess keratin within hair follicles.

Keratosis pilaris is found most commonly on the back and outer sides of the upper arms (though the lower arms can also be affected).  It can also be found on the thighs, hands, and the tops of the legs, flanks, buttocks, and face, where it is commonly mistaken for acne (especially in adolescents).

Keratosis pilaris also appears to be linked with atopic dermatitis or eczema. Like eczema, KP bumps may go away independently as a child grows into adulthood. For others, KP bumps can be a long-term skin concern.

Keratosis Pilaris Types of Keratosis Pilaris
  • Keratosis pilaris rubra (red, inflamed bumps that can be on arms, head, and legs)
  • Keratosis pilaris alba (rough, bumpy skin with no irritation)
  • Keratosis pilaris rubra faceii (reddish rash on the cheeks)

Keratosis Pilaris How Do I Get Rid of KP Bumps?

The best way to get to the root of the problem is to use a leave-on exfoliant containing salicylic acid (BHA). BHA is an excellent multi­tasking ingredient because it gets beyond the skin’s surface to exfoliate inside the pore, removing the hard clog that causes the problem. The clog is gone, and the problem is relieved!

Glycolic acid can lower the skin's pH and, therefore, loosen the “glue” that holds skin cells together. This allows dead skin and debris flakes to detach from the fresh new cells underneath.

Moisturize with a barrier repair cream. Dry, dehydrated skin worsens KP bumps, so use a barrier repair moisturizer to strengthen the skin barrier and reduce dryness and dehydration.

Keratosis Pilaris Are KP Bumps Preventable?

Because KP bumps are caused by genetics, they cannot always be entirely prevented. However, you can reduce their appearance and the likelihood that they will show up on your skin again by keeping your skin moisturized and exfoliating several times throughout the week.

Treatment for Keratosis Pilaris

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