C.H.
We started using them when they were the only option for us after the Hyland's recall : ( The drops do work & I am happy with them in that regard but SO expensive & a lot of waste. The last thing I want to deal with at 2am is keeping track of small pieces of trash so DD doesn't get a hold of it & choke. We have since switched to Boiron Chamomilla 30C (small blue tube of tabs similar to Hylands that dissolve). You get 80 tabs for close to $5 which is a steal compared to the drops. We have been giving 3 as needed and so far very happy.