I've had Vinylux on my nails (finger) for 5 days and I really do believe it is a different formula. I'm one who usually can't go for 24 hrs without some major chipping. I think is it somehow more "rubbery" and less crackly when dried. At 3 days, still excellent, at 5 days, I do have some tip wear, but you don't see it unless you have magnifying glasses on. I'm taking it off tonight.
My favorite real nail polish has been OPI. Nice smooth formula, goes on thin, fantastic colors. But OPI will chip noticeably after about a day or 2. Vinylux seem to "wear down" off the tips rather than chip off in larger chunks.
I think it is a different sort of polish, and I think it will appeal to lots of polish only wearers.
The negatives: It does show ridges, and there is not ridge filler in that formula yet. If you use a ridge filler "crackly nitrocellulose formula" underneath, it's not going to have the same lasting effect as just Vinylux. I also don't think the topcoat is as smooth or shiny as my fav Seche Vite and no where near the perfect shine of soak off gel.
You should read the ingredients on the Vinylux bottle. They are:
Butyl Acetate, Ethyl Acetate,
Nitrocellulose, Acetyl Tributyl Citrate, Isopropyl Alcohol, Adipic Acid/ Neopentyl Glycol/Trimellitic Anhydride Copolymer, Stearalkonium Bentonite, Titanium Dioxide, Styrene/ Acrylates Copolymer, Benzophenone-1, N-Butyl Alcohol, Silica, Mica, Dimethicone, Tirmethylsiloxysilicate, Synthetic Fluorphlogopite, Calcium Sodium Borosilicate, Glycidoxypropyl Silsequioxane, CI 77510 (Ferric Ammonium Ferrocyanide), Tin Oxide, CI 19140 (Yellow 5 Lake), CI 77266 (Black 2), CI 77000 (Aluminum Powder), CI 77491 (Iron Oxides), CI 15850 (Red 6), Barium Sulfate, Colophonium (Rosin) (Colophane), CI 15850 (Red 7), Colophonium (Rosin) (Colophane), CI 15880 (Red 34), Colophonium (Rosin) (Colophane), Calcium Aluminum Borosilicate, CI 77163 (Bismuth Oxychloride), CI 77820 (Silver),
All nail polishes contain Butyl Acetate, Ethyl Acetate and Nitrocellulose.