Let me provide a little insight on the current status of your scalp hair. Use of an emulsifying, cleansing, penetrating agent would be very beneficial. THC and THCA are deposited in your scalp via the sebaceous glands sitting right below the epidermis and you have cut end of the hair exposed by way of the follicle and the cuticle of the growing hair is softer than after it emerges . So don't miss the opportunity to treat the hair as it grows.