The idea behind wax is to prolong the shine, not to restore it. Don't wait until your boat starts looking dull to wax it. If you keep gelcoat protected with a once or twice a year coat of wax, that new-boat shine will last nearly forever.
Left it too long? Then a cut and wax is what you need. This is either a one or two step process depending on how oxidised your gel coat is.
We use Cyclo polishers for the best results every time. You won't be disappointed
Now is a great time of year to get it done and have your boat looking great for the summer.