Some shampoos contain harmful preservatives, alcohol, greasers, and skin irritants. These are added to the shampoo to increase foaming, fragrance, and life of the shampoo. They affect the scalp’s health and cause irritation. Alcohol dehydrates the skin and causes hair fall, while greasers prevent the absorption of natural oil. It’s always recommended to choose a shampoo labeled “healthy choice.” Check ingredients of the shampoo and use an organic-based shampoo to prevent hair fall and hair damage.