Apply Bye Bye Build Up all over your dry scalp once a week. The first time you use it you will leave it on for 3 minutes after application, rinse well and shampoo. Each week you use it you will leave it on by 1 extra minute until you reach a maximum of 10 minutes. Once you reach 10 minutes you leave it on for 10 minutes every week thereafter. Ideally shampoo every second day. Always do two shampoos and leave the foam of the second shampoo on your scalp for 2-5 minutes. Apply Therapeutic conditioner to your scalp and apply your regular conditioner to the ends of your hair. Leave them both on for 2-3 minutes and rinse well. Apply Science Control Treatment to your scalp once a day (my apologies, I did say twice a day but I was thinking of another Simone Treatment Spray) Apply after your hair wash to damp scalp and on your dry scalp on the days in between. Morning time would be the best time to apply it as your blood circulation will be better throughout the day, however, if you are washing your hair in the evening, take advantage of your clean scalp and apply it then as it will penetrate better. It says on the bottle to use for 6 weeks. For some people this is enough but you can continue to use it as we discussed until you see hair growth. Keep in touch and let us know if you see hair growth results before the 6 month mark. Apply Density Drop every evening to a dry or damp scalp. 2-3 pipettes will be plenty to cover your scalp. Again because of my mistake above, if you do apply Science Control Treatment in the morning you could apply density drop all over your scalp in the evening time. Thanks Teresa