I have not taken them long enough but it seems to be working.
My stomach feels better and cuts & scratches healing faster.

These probiotics work extremely well. I have taken others without the entercoating these offer and they were useless. These have a protective coating that allows the probiotics from being destroyed by stomach acids before it reaches your intestines. The result can make a huge difference in your health. A healthy intestines allows it to absorb the nutrients from the food you eat and allowing your body to be much healthier. Hard part is in sticking to the healthy eating. Product is easy to store, easy to swallow, and can be taken anywhere. Love it.

as it made me exhausted though that's because of my system mainly.

These work pretty good. I have been plagued with digestive problems ever since my gallbladder was removed 25 years ago. If I am unable to eat yogurt, (yes the one advertised all the time, activia) then I take a pearl.

Helps with systemic candida overgrowth