ive just had a shellac manicure and its really good i love it .. but i see theres more colours for the opi axxium and i love how i can choose my fav colou from opi normal range .. but looking on some reviews they say it can ruin your nails? is this true? i am going to have them done by some one qualified so maybe it might be diffrent and will it last as long as shellac so any advice would be good so i know what to get on my next visit thanks