Thanks Tammy! A lot of thought goes into the design of our products to create features that we think you'll love, and we offer a range of product versions for the varied needs and preferences of our consumers. Most people begin to notice differences in their digestive health in the first few weeks, and our Align Team is always happy to help if you have any questions. If you'd like to talk more, just give us a call at 1-800-208-0112 from 9AM -- 6PM EST Monday–Friday.