Hi! Thank you for your question. I would like to know more or less which is the amount of the hair that you loose in a day, because it is normal to lose up to 100 hairs daily and 200-250 hair the day of shampooing. Hair fall may come for different reasons, such as anemia, low levels of iron, high fever, different illnesses, hormonal imbalance, emotional stress etc. Have you recently had any of these or any other health problem? While the main reason for the grey hair is genetic. Vitamins and minerals especially vit B12, zinc and cooper are responsible for the proper nourishment of the hair, also if the body is suffering from the lacks of vitamin C and E than hair turns into gray very normally. If you want to avoid premature graying of the hair try to fill your diet with these substances also try to take some daily supplements that contain the vitamins mentioned above. Also you can try the Phyto Phytocyane shampoo twice a week and ampoules Phytociane 1 ampoule 2 times per week. Sometimes it`s totally possible that gray hairs turn into black hair. I wish you good health!Please feel free to contact me again if anything is unclear. Dr. Migena GEGA