Bioeffect EGF Serum. Impressive!

[mrscumberbatch]

Has anyone else used this?
I got a tester in my advent calendar and I'm not one for believing in moisturiser/serum hooey.
It's only been one day but there's definite improvement in my under eye area.

I wish I'd had the foresight to do a before and after...

Anyone else using/used it?