My son has been on this probiotic since he was around 18 months old, he is going on 5 years old now. This has been a godsend when it comes to getting his body more regular. Apparently the last time I placed an order I accidentally signed up for auto refill, I didn’t realize until my next order was shipping a good 2 months before he needed it. I reached out to customer service and the response time was astounding! I heard back almost immediately and the agent did everything he could to make it right, I was so impressed that I kept the auto fill and just asked to change the length of time between orders. I will forever be a customer and I actually just got my mom to start taking the probiotic as well. Thank you!