A few months ago I was on the hunt for a new topcoat and decided to give Sally Hansen Mega Shine a try since I'd heard really great things about. All the reviews I saw claimed that this topcoat was like Seche Vite but even better because, as I'm sure most of you know, Seche Vite has the little disclaimer that it may cause birth defects (news flash, a lot of nail polish brands include the exact same ingredient - you're probably already using it). Even though I loved Seche Vite and I could care less about the disclaimer because I'm not pregnant, nor am I planning on being pregnant any time soon, I hated that it turned rock hard only halfway through the bottle so I thought this would be a great topcoat to try since it's supposed to be even better.
This topcoat is actually HORRIBLE. It does dry very quickly and it evens hardens almost as fast as Seche Vite, but this comes at a price. Mega Shine ruins my manicure every time I try to use it. I'm not sure what's happening exactly but it looks like it shrinks at it dries and at the same time it shrinks the existing nail polish. Here's the result.
(my ruined nail polish is Sally Hansen Complete Salon Manicure in Yellow Kitty if you were wondering)
As you can see it pulls the nail polish from every direction creating immediate tip wear as well as little stretch (? I'm not sure what to call them) marks. I think this issue can be minimized if you apply it after your nails are completely dry but this doesn't make any sense to me because right on the directions it says "apply 1 - 2 coats over wet or dry nail enamel." Oh, and did I mention that this topcoat makes my nail polish peel off within a day or two? Needless to say I'm very unimpressed by this topcoat and I would never recommend it to anyone and I will never repurchase it. It's possibly the worst cosmetic item I've ever tried and yes I'm probably being a bit dramatic but I have a hard time thinking of another product that is just all around this bad and I hate this much.
My recommendation? Go with any topcoat in the entire world other than this one.