Review (3/5): It slowly works
Happy got it in mail today and totally skeptical for if it works or not and did test it and to my surprise it does work , my teeth went from a really yellow color to a lighter yellow color , so it dont work instantly but more slowly in time for it turning my teeth white .
Update: reason why i went from giving a 5 star to a 3 star is because even though it does slowly work but no it dont fully , i have used it each day for 7 days which says from yellow to white in 7 day which is a lie , hopefully it will eventually fully work as i continue using it.