Hello Lybrate-user!
hair loss can be due to various reasons, genetic, hormonal, nutritional, dandruff, stress ,pollution etc. We have to examine the scalp to know the reason for hair loss. Blood tests like cbpesr ,tsh, lft, rbs, s.ferritin levels, s.b12 levels, s.vitamin d levels, s.testosterone levels ,f.lipid profile etc need to be checked to know the reason and to focus on the internal factors.
Moreover, dandruff is something which is not just external but is linked to your diet, hormones etc. Usually, from the age of puberty to adulthood, oil glands will be very active and can cause repeated inflammation. So, dandruff can be controlled in this age group and not cured completely. Use ketoconozole containing shampoo like head and shoulders, scalpe etc to control dandruff. Reduce oily foods, non vegetarian foods, sweets and chocolates ,dairy foods to control dandruff. Mean while ,take balanced diet with proteins, fresh fruits and vegetables, plenty of fluids for hydration, omega 3 rich foods like walnuts, flax seeds etc, iron rich foods like green leafy vegetables, liver, jaggery. Use a ph balanced shampoo .do not use too much of home remedies. Please do consult your dermatologist for further evaluation and management.