I had started out with Seche Vite Top Coat before switching to Sally Hansen's Insta-Dri. I switched because the stench from Seche Vite gives me a headache and it contains TOLUENE, a known carcinogen. Anyways, back to Insta-Dri, it is a close competition of Seche Vite. It definitely gives the nail shine as promised. Application is not as smooth as I had hoped, and I can never be sure if more or less is better. Now as for the main purpose, the "insta dry" property, it sure doesn't dry as fast as Seche Vite, but it did cut drying time at least half. Just remember it doesn't dry in 30 seconds like it claims. Then, there is the chipping issue. It claims to be "anti chip", but I tried it with Zoya, CG, and Sephora by OPI. All of them chipped within days! I was quite disappointed with that. :-( I was really hoping this could replace Seche Vite. Maybe I am doing something wrong. How did everyone else do their manicure with this? I have yet to find something that can compete with Seche Vite in terms of quickness, shine, and longevity.
It truly dries up the nailpolish (2/3 coats) really fast, within minutes. Application is really smooth. I didn't see any shrinkage that I read on some people's reviews, but I'm not sure what that means or how that actually looks like. I've only started my nail polish obsession half a year ago. I bought this due to the rave reviews for this product everywhere and I finally bought it on sale in CVS. I found the packaging really cheap-looking. But what really pushed me to the edge is the SMELL. I CANNOT stand the stench of that thing. It reminds me of the nailpolishes I stole from my mommy when I was a little kid. I used it one time and I could not stand the smell of my fingers for the next few days! And, when I looked at the ingredients list, it contains TOLUENE---one of the Big 3!!!!!!!! I heard somewhere that Toluene is the worse out of the three, but don't quote me on that. Unless they fix the ingredients (hence the smell), I will not be using/buying this again.