I actually did a search for the Cube in the UK and the only supplier was out of stock, so went down the glycerine soap route and bought a bar of Pears fortified with Aloe Vera & Olive oil

If it doesn’t slick my face up, at least I’ll have the benefit of being detoxified if the box is to be believed - whatever that means….yeah right!
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Prefacing this with the comment that I wanted this variation to my shave routine to work.
I think I’ve given it a fair go and can definitely say that for my skin, it’s not as good as the Proraso pre-shave product.
The level of slickness achieved with the soap on my skin simply cannot compete with Proraso. In addition, the post shave feeling to the face was fairly telling. After using the soap, my beard area felt like it had been shaved with a razor on a far more aggressive setting than when shaving using the Proraso pre-shave using the same razor setting.
It’s purely a preference thing, but I’m going back to the Proraso and leaving the soap in the soap dish where it belongs.