I'm new to the Forum, though I've suffered with FB/FF for years and now have mild rosacea. I have been following this thread with interest, as I myself have been using Capillary Clear and wanted to add my own experience.
I'm really sorry to say that it has had a negative effect on my skin. I used it exactly as directed, morning and night; I did nothing different to my skin otherwise - same gentle cleansing routine and nutrition as always. I am pretty sure that the cream had started to fade some of my capillaries after around five weeks, but I couldn't bear using it any longer - it brought me out in spots, made my skin feel dry and sore, and even brought on flushing episodes. During the day after having applied it, my face felt like it was on fire and was really uncomfortable. At night it would also burn, and the burning would sometimes keep me awake.
Since stopping Capillary Clear my skin has returned to its previous state. I have permanent pinkness and the occasional blushing episode, but nothing nearly as bad as with the Capillary Clear. Now I am trying an anti-redness cream by Avene, which is available from Boots, and it's lovely! It's soothing on my skin, feels rich yet light, eases the discomfort and burning and doesn't bring me out in spots. It is also lightly green-tinted (very light, not like anti-redness make up which I dislike) so it evens out the skin tone slightly.
I hope that this is in some way helpful. I hate bad news and I am very glad that this cream works for some people, but everyone's different and I just wanted to highlight what may happen to others.
Best wishes all.