Colgate Max White Overnight Pen 2.5 ml

Max White Overnight Whitening Pen counteracts discoloration while you sleep. Simple and effective teeth whitening after brushing, which is also safe for the enamel. On the first application, click the pen up to 20 times before the first drop of serum comes out. For the next application, click the pen 1-2 times for serum for up to 4 teeth. Repeat daily.