Keratosis pilaris causes small, rough bumps often on the upper arms, thighs, buttocks, and cheeks. It’s harmless and common, especially in kids and teens, and tends to improve with age.
What it looks/feels like
- Tiny, goosebump-like or sandpapery plugs at hair follicles.
- May be skin-colored, white, or red; cheeks can look “blushed.”
- Often worse in dry, cold weather.
Why it happens
- Keratin (a skin protein) builds up and plugs hair follicles. Often runs in families and is associated with dry skin or eczema.
Simple routine that helps
- Gentle cleansing; avoid harsh soaps and hot showers.
- Daily moisturizer—look for:
- Urea 10–20% creams
- Lactic acid or ammonium lactate 10–12%
- Salicylic acid 2% lotions
- Ceramide-rich creams for barrier support
- Apply after bathing while skin is damp.
For redness and roughness
- Use exfoliating lotions (above) 1–2 times daily as tolerated.
- For facial KP or sensitive skin, start 3–4 times per week and increase slowly.
- Short courses of mild topical steroids or anti-inflammatory creams may help if areas are very red/itchy (clinician-guided).
Do and don’t
- Do moisturize consistently; that’s the mainstay.
- Do use sunscreen on exposed areas—KP skin can get blotchy/red with sun.
- Don’t over-scrub; rough exfoliation can worsen redness and texture.
- Don’t expect an overnight fix—improvement takes weeks; maintenance is key.
Options for persistent cases
- Prescription-strength keratolytics (higher urea, lactic acid) or topical retinoids at night.
- In-office treatments (chemical peels, gentle lasers) can soften texture and reduce redness in select cases.
When to see a clinician
- If bumps become painful, inflamed, or you’re unsure of the diagnosis.
- If there’s significant redness on cheeks and nose—rule out rosacea or other conditions.
Bottom line
- KP is benign and very common. Regular moisturizing plus gentle chemical exfoliants improve texture and smoothness over time.