Hi Michelle, I haven't used Shellac but I have had the Bio Sculpture gel nails, which is the same kind of thing in fact I have it on my nails now as I type lol. It really is fab and you are right it doesn't chip, so will be perfect to have done before Mexico. I have a manicure included in my wedding package but will be going ready prepared with my shiny manicured gel nails. Oh and your little girl looks adorable, bet she feels like a true princess in that gorgeous dress x