I used it the most regularly when my little one was 1-2 months old. Now at 3 months +, I only use it maybe a few times a week, if she’s fretful and gassy
Some reviews here: https://community.theasianparent.com/q/there-anyone-who-tried-rid-wind-baby-drops-newborn-ease-colic-before-saf/1213286
I stop quite soon as Long as he doesn’t fuss.