Remoil with Teflon happens to be an excellent lubricant, a fairly good rust preventative and a descent cleaner. I do use it and especially on guns that have Ivory or Sambar Stag grips on them. The reason is that Remoil is CLEAR and will not stain or discolor porous materials the way a colored lubricant will. I have also found that Remoil will not ruin wood, rubber or plastic as will some others. It is correct that even though the Remoil is very thin and evaporates rapidly, it does leave behind protection and lubrication properties. From what I understand Teflon will NO LONGER be in any lubricants or coatings as they have determined it is carcinogenic. While it is an excellent lubricant, Teflon is too dangerous to handle and causes cancer - so they say.
A very similar Oil, cleaner and lubricant I also favor is RIG #2 Oil which by the way never has contained Teflon. It cleans better than Remoil, prevents rust and lubes well too. I would not recommend using it on guns with Ivory, Stag or Pearl as the yellowish color will tend to turn the grips darker. Other than that, RIG #2 will NOT harm wood, plastic, rubber or polymers and is an excellent product. Been using it for 35+ years and it has never let me down!
Recently I have discovered Birchwood - Casey Synthetic Gun Oil which is probably the best lubricant I have used to date! I've only been using it for 6 months now and I am still enamored by its lubricity. From what I can tell so far it is also an excellent rust preventative but not as good a cleaner (a bit too thick for proper cleaning in tight areas) as Rig #2 is. Because the BC Syn. Gun OIL is thicker than Remoil and Rig #2 it stays where you put it for a long long time. It has a low odor and is clear so it won't discolor anything. For lubrication I would highly recommend it - and even the new (safer) version without the Teflon STILL works very very well.
It will be interesting to see how the Remoil without Teflon works - as the bottles and cans I have in stock do contain the Teflon.