Do I need to increase the dose of Lactase Drops for thicker milk or cream?

It is not necessary to use more of the drops for half-and-half, heavy/whipping cream, or milk products higher in fat content. Typically, the higher the fat content in dairy products, the lower the lactase content. The important thing with these heavier liquids is to thoroughly mix in the drops and allow them to act on the product for at least 24 hours for optimal results.