I've been using BodyGlide for every marathon and training run and never had a problem. But in a comment to a post back in May, I was advised of another product: SportShield from TwoToms. I hadn't gotten around to trying it, but bought a roll-on tube recently and got to try it on my long run yesterday.
I think the jury is still out. I use BodyGlide both on my inner thighs and on my nipples for long runs and marathon races. Yesterday was a 19 mile LSD and I liberally applied the SportShield to both places (well, all four, but who's counting). At the end, my nipples were fine. My inner thighs seemed to be a little raw, but not really noticable. So I'll try it again next week. But I've never noticed any rawness at all after using BodyGlide.