Too much protein can damage hair, says Dr Priyanka Kuri, a Consultant Dermatologist at Aster Whitefield Hospital, Bengaluru. Protein overload makes hair stiff, brittle, and prone to breakage, often mistaken for hair loss. Causes include overuse of protein products, lack of moisture, and hard water. Use moisturising shampoos, avoid protein treatments, and restore balance for healthy hair.