Thanks ladies ^^^
Wow the Oestrogel dries rapidly.
With the Sandrena it would take 30-60 minutes to dry which made it quite an obstacle if you're applying it twice a day.
The Oestrogel dried in 2 minutes.
It means that if you're out you could actually go to the loo and wait for it to dry. Admittedly you spread it over a larger surface area but even so it's super-quick drying 👏👏👏.
I also note that it states you can shower after a minimum of 1 hour. With the Sandrena it's more like 4 hours.