What should you know about urea for cracked heels?

Cracked heels form when dry, thickened skin loses flexibility and splits under pressure from standing or walking. Urea is a moisturising ingredient with a keratolytic effect: it helps the outer layer hold water while loosening built-up scale. This can make the skin more supple and reduce the pulling force around a fissure. Lower-strength products are often suited to routine dryness, while stronger preparations may be used for very thick, rough skin under professional guidance.

Urea does not treat every cause of heel cracking. Scaling between the toes, itching, or a spreading rash can point to Athlete's Foot and may need a different treatment. You can read more about [Dry Skin](/symptoms/dry-skin/) and [Cracked Skin](/symptoms/skin-cracking/) when checking whether the pattern fits simple dryness.

Apply the product to clean, dry heel skin as directed on its label, concentrating on the thickened areas. Follow with socks if the product instructions allow it; this can reduce rubbing and help keep the moisturiser against the skin. Avoid putting urea into a deep, bleeding, or actively infected split unless a clinician has advised you to do so, because it may sting or irritate. Do not use it on skin that reacts with marked burning, swelling, or a new rash.

After bathing, pat your feet dry rather than rubbing them hard. Use a separate foot towel, wear well-fitting shoes, and avoid cutting callused skin with blades. A plain moisturiser or an [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) routine can help maintain the improvement once the roughness settles.

Arrange a medical assessment if a crack is deep, repeatedly bleeding, increasingly painful, warm, swollen, or draining fluid. Seek prompt advice if redness spreads, walking becomes difficult, or you have diabetes, reduced foot sensation, poor circulation, or a weakened immune system. These factors can make a foot wound harder to notice or heal. Persistent cracking despite consistent moisturising also deserves review, especially when there is significant itch, toe-web scaling, or a rash elsewhere.

Ask which urea strength fits the thickness of your heel skin, whether it is suitable for an open fissure, and what to use if itching or scaling suggests Athlete's Foot. Also ask how to protect a painful split while it heals and when to stop self-care and return for review.