I’ve tried most of the lash serums over the years and have seen a slight improvement with the UK Lash, main things to me is that it doesn’t cause irritation as I’ve had a few that did and I had to bin after a few uses.
Is the Babe one any good? Not heard of it.
UK Lash is often on offer so shop around if you are buying it, I got a pack of 2 from their own website last year around Black Friday and think it was about £50.