My daughter started cutting teeth at 4 months and had 8 teeth by her first birthday. She got a new tooth about once a month, so we went through our fair share of Tylenol. This formula works just fine, but why is dye added to make it purple? Babies don’t care what color it is and I don’t like putting anything unnecessary into her little body. Thankfully, Tylenol does make a dye free cherry version, which is what we started using once we found it.