Trusting the clinical trial I read on Evivo, it will most likely help my baby’s gut and produce healthy microbiome. I cannot yet attest to the benefits of it. The probiotics will unlikely help with acid reflux (if anyone thinks they will), it did not help us. Reflux should resolve on its own once a baby’s epiglottis matures and starts to fully close, as this is a physiological issue. Overall there is no impact on sleep, which all parents of young babies are desperate for. What I noticed the most is the change in fecal color - it got a little darker than it was. Frequency is about the same. But again as your baby grows the number of bowel movements will decrease. I want to believe that this particular microbe is helping my baby to digest and absorb all the nutrients from breastfeeding milk, as it is claimed to utilize human HMOs. The fact is that baby’s microbiome changes all the time. Once you start your baby on solids or start to supplement with formula, or send him/her to infant care outside your house they will continue to accrue new bacteria and it is an ongoing process - AND it is normal. Producer is using a term ‘dysbacteriosis’ or ‘dysbiosis’, which is not a diagnostic term, there is no such diagnosis and it is a pure marketing tactic (my opinion). Again, the clinical study which I was able to find and read on Evivo with results of up to 80% gut colonization by B. Infantis has shown such results after 21 days. Therefore, I am only using Evivo for one month course, since the claimed benefit will be achieved within 28 days of using starter pack and as I mentioned above microbiome of the gut is fluent and prone to changes at all times. Full disclosure: I am a healthcare professional by occupation. I started to look for ways to help my baby with what I thought could be either colic or intestinal discomfort. This is how I learned about Evivo and decided to give it a try. I hope my review helps other parents.