What are the ingredients in Lactase Drops sourced from? Education Team April 13, 2022 17:04 Updated Follow Ingredient Source Lactase Kluyveromyces lactis (final product does not contain yeast) Related articles Can I use Lactase Drops with ice cream or frozen milk products? How do I use Lactase Drops? What is the purpose of each ingredient in Lactase Drops? Are there any warnings or side effects when using Lactase Drops? Does Lactase Drops contain gluten or grains? Comments 0 comments Article is closed for comments.