Dermatonics is lighter in texture than Flexitol and (according to the directions) applied once daily , so more cost effective and less time consuming.
When it was introduced it was on prescription (not sure if this is still the case though)
Any cream applied at night benefits from a pair of cotton socks to help keep it in place and the heat to aid absorbtion.
There's a solid heel stick by Palmers that is pretty good (though quite solid so takes a while to rub in)
I use all up all the creams I don't like - I used up some SteamCream (too lavender-ey for my hands) , I'm on some S&G The Righteous Butter at the moment .
Only one I'd never use on my feet is Liz Earle Superbalm (the solid one) . Went in the shower the next morning, the water made my feet slippery and I ended up on my bum 