recently I saw some gray hairs and dermatitis on my 2.5 year boy's head...which shampoo should I use for him??

A. For your 2.5-year-old boy with grey hair and dermatitis, it's important to use a mild, gentle shampoo that's safe for toddlers and suitable for sensitive skin. Look for shampoos that are: 1. **Hypoallergenic and Sulfate-Free**: Gentle on the scalp and less likely to irritate dermatitis. 2. **Moisturizing**: Shampoos with ingredients like aloe vera, oatmeal, or coconut oil help soothe and hydrate the scalp. 3. **pH-Balanced for Children**: Ensures it’s gentle enough for delicate skin. 4. **Free of Harsh Chemicals**: Avoid fragrances, parabens, and artificial colors. You could try a baby shampoo such as **Cetaphil Baby Wash & Shampoo** or **Aveeno Baby Gentle Wash & Shampoo**, both of which are mild and suitable for dermatitis. For the grey hair, it might be worth consulting a pediatrician or dermatologist to determine the underlying cause and get further advice.