I was given a free sample of this at a conference - it is a silicone based gel that is intended for use on scars to soften them and help them heal. I was interested to have a go as I have had several ops and my belly resembles a map of the London Underground! However, having applied it to my scars, it was on my fingers so I rubbed it in around the cuticles and finger tips. Fantastic! I bought a tube (not cheap unfortunately). Its November and usually by now my fingers are starting to crack, then that horrible business with non-healing splits that are painful and need supeglue to keep them together! This is the best thing I have ever used, but the product itself doesnt mention Raynauds at all - it is intended for surgical scars or burns. But if it can keep my finger ends soft then I may be in with a chance this winter?