If you must have your hair dyed, have a professional do it for you. Ensure your hairdresser uses foils to dye your hair and does not place a dye on the whole head. Hair dye chemicals should be kept from touching your scalp because they can cause damage to your hair follicles. Aloe vera may help prevent hair loss as many people swear by it. Just rub Aloe Vera into your scalp nightly. This helps to stimulate your scalp while the minerals help to make your hair stronger.
If you experience hair loss and follow a vegan or vegetarian diet, watch your soy and iodine intake. Soy can affect the thyroid, and any imbalances in your thyroid may directly cause hair loss.