There is no definitive answer to this question, as the best strength for you depends on your body chemistry. With regular CBD oil, experts recommend beginning with 20–40mg of CBD and increasing the dosage by 5mg each consecutive week until the desired effect is reached. For example, if you start with 30mg and are left wanting, you can increase the amount to 35mg the next week. If you feel you need more, you can increase to 40mg the following week. In most cases, trial and error is needed to help you find a dosage you’re satisfied with. However, as water-soluble CBD is more easily absorbed, most users only need about one third of the amount as they would of regular CBD to experience the same benefits. (1)