We recommend twice a day, once in the morning and once at night. However, some people may find their hair getting excessively oily, so you can cut down to once a day or once every other day. You can apply the elixirs as a nightly treatment, and rinse your hair free of the elixir in the morning, or you can leave the elixir in all day long for the best effect. Always shake your elixir before use.