Everyone’s body is different, so naturally this varies. However, research trials with ARMRA Colostrum show that the immune protective effects begin less than 2 hours after taking your first dose!So, you may not notice, but it's already begun working in the background to level up all the facets of your immune resiliency. Some people report a difference in their overall energy levels, allergies, and gut/digestion within a few days of starting ARMRA. But changes take time, like improvements in muscle composition, hair growth, blood sugar and metabolism. The effects are dose-responsive and build. We recommend 4-6 weeks of consistent, daily use to appreciate the full benefits of ARMRA Colostrum.