I was a happy oestrogel user for 18 months. For approx 6 months I had been on 3 pumps per day. I don't care what anyone says, my new cylindrical bottles did not contain the same gel as before. The consistency was stickier and within a few weeks all my symptoms came back. I upped my dose to 4.5/5 pumps and it got better, but never as good as before. My next cylindrical batch was even worse - I ended up taking 5/5.5 pumps per day and was still getting symptoms.
A few days ago I switched to Sandrena. For far so good, fingers crossed this will be my new saviour!