A person applying cream from a jar onto their leg - Photo by Mina Rad on Unsplash

Keratosis Pilaris: What Causes 'Strawberry Skin' on Your Arms

By Michael C. · Written and reviewed by Michael C.

Keratosis Pilaris · Published 2026-08-24 · 10 min read · 1921 words · Updated 2026-09-08

Keratosis pilaris is harmless keratin buildup blocking hair follicles, not poor hygiene, and responds well to consistent exfoliation.

Key takeaways

  • Keratosis pilaris is caused by keratin buildup blocking hair follicles, not poor hygiene.
  • It commonly worsens in dry winter conditions and improves in humid summer weather.
  • Lactic, glycolic and salicylic acids plus urea creams are the most effective evidence-based treatments.
  • There's no permanent cure, but consistent care significantly improves texture and redness over time.

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Source: SkinLabs Editorial Team ()

Cover image: Mina Rad — credit