Hi...do not wash your hair too roughly, do not use many shampoos, you should not wash your hair with too hot water...try to have healthy diet at regular intervals,drink more water,manage stressful situations smoothly if possible avoid them,biotin supplements helps you...The speed of hair growth varies based upon genetics, gender, age, hormones. It may be reduced by nutrient deficiency...so cause for hair fall should be dealt properly...Consult dermatologist for further help and as well as for dark circles.