This is the second bottle I ordered. It's one of the most life-changing supplements I've ever taken. I'd suffered with horrible digestion and bloating for 32 years of my life until I came across information about h.pylori and mastic gum. I decided to take 500mg of mastic gum morning and evening for 2 months. I had a bit more flatulence and belly rumbling for the first few days, as if there was a battle going on inside me, but after about a week it was all smooth sailing. Mastic gum has completely fixed my digestion. No more tiredness after eating, no bloating, no constipation. I highly recommend it to anyone with weird digestion problems. I have Hashimoto's and sorting out h. pylori with mastic gum helped my thyroid a lot, too. I took mastic gum alone for 2 weeks. Then, I added wild oregano oil for 3 weeks, and also have been taking Saccharomyces Boulardii from around the 3rd or 4th week and will be taking it for 3 months in total. My 2-month-long course of mastic gum is almost over now and I'm cured. Try it before trying the conventional antibiotics for h.pylori. You've got nothing to lose!