#asktheexpert "My both kids' knees are black,what should I use?

A. Darkening of the skin on the knees in children can be due to a variety of factors, including friction from crawling or playing, pigmentation changes, or dry skin. Here are some steps you can take to help lighten the skin and keep it healthy: 1. **Moisturize Regularly**: Apply a gentle, fragrance-free moisturizer to your children's knees daily. Look for products containing ingredients like shea butter, glycerin, or coconut oil to keep the skin hydrated. 2. **Gentle Cleansing**: Use a mild soap or cleanser when bathing your children. Harsh soaps can dry out the skin and exacerbate darkening. 3. **Exfoliation**: Gently exfoliate the knees once or twice a week using a soft washcloth or a mild scrub. This can help remove dead skin cells and promote healthier skin. 4. **Aloe Vera Gel**: Apply pure aloe vera gel to the knees. Aloe vera has soothing and lightening properties. 5. **Natural Remedies**: Some natural remedies may help lighten the skin, though their effectiveness can vary. You can try applying a mixture of lemon juice and honey or a paste made from turmeric and yogurt. Be sure to rinse these off after 10-15 minutes and always do a patch test first to ensure there's no irritation. 6. **Sun Protection**: Ensure their knees are protected from excessive sun exposure, as UV rays can cause further darkening. When outside, apply a child-safe sunscreen to their knees. 7. **Hydration and Nutrition**: Encourage your children to drink plenty of water and eat a balanced diet rich in fruits and vegetables. Proper hydration and nutrition support overall skin health. If the darkening persists or you notice other skin issues, consider consulting a pediatrician or dermatologist. They can rule out any underlying conditions and provide more specific treatments if necessary.