Hair thickness and how much, and congenital genetic factors have a certain relationship, through a variety of methods may not be able to improve hair quality or limited effect, but you can try the following methods to observe whether the desired effect can be achieved: 1, improve the diet 1, supplement protein: to protect the nutritional supply of hair growth, to avoid dry hair or shrinkage of hair follicles, eat more food rich in protein, vitamins and trace elements, such as beans, eggs, meat, milk, etc. For example, beans, eggs, meat, milk, etc.; 2, supplemental iron: iron can help hair growth, such as the intake of peanuts, red dates, black rice, etc.; 3, supplemental blood food: some foods can help hair growth because of the role of blood, such as ginger, can be eaten in moderation, plus an appropriate amount of scalp rubbing; 4, supplemental high iodine food: moderate amount of food containing high iodine, such as kelp, nori, oysters, etc. Second, hair care try to wash your hair with warm water, pay attention to massage the scalp. If you wash your hair too few times, resulting in too much oil secretion on the head, it is also easy to cause hair loss. Hair dyeing, perm damage to hair follicles, easy to cause hair loss and hair thinning, should try to reduce the number of perm and dye. Third, regulate the mood of long-term excessive tension or depression is also easy to lead to hair loss, hair thinning, to maintain a positive and optimistic attitude, maintain good habits and regular rest, for the endocrine system has a regulatory role, and thus for the improvement of hair quality has a certain role. Fourth, drug treatment Chinese medicine He Shou Wu, to promote hair growth and hair quality improvement has a certain improvement effect. If the hair is fine and soft, want to become thicker and thicker, you can try to use the above methods, but because the hair quality depends largely on genetic factors, coupled with the influence of individual factors, therefore, the improvement effect of these measures may be obvious to some people, some people have no effect.