Zinc ointment 200 ml Krusan Krusan zinc ointment is an unscented zinc ointment which is very skin-friendly. Krusan zinc ointment forms an oil film immediately after application, which protects the skin against water, sweat, urine and bacteria. Although the ointment is water-repellent, it allows the skin to breathe. Zinc oxide is the active substance that relieves redness and irritation of the skin with a drying effect.