Questions about Alpine White Whitening

One pen lasted for me 4 to 6 applications, so in total the set with 3 pens should last for ~12-18 applications

The active ingredients are phthalimidoperoxycaproic acid (PAP), hydroxlapatite and potassium nitrate. PAP effectively whitens the teeth without damaging the enamel or irritating the gums. Potassium nitrate protects the teeth from pain sensitivity and hydroxylapatite remineralises the enamel. From my point of view, a well-rounded product.

I'd rather have white teeth than e-cigarettes. :)

According to a study in the British Dental Journal (https://www.nature.com/articles/s41415-019-0011-6?), products containing phthalimidoperoxycaproic acid can damage teeth. Also, the blue LED is clearly taking the piss out of the customer, as bleaching requires UV light and not just blue light. Rather invest the money in a real visit to the dentist instead of throwing money away on a clear scam!

I have no problems with the UV device. But you can't speak of "withening". In my eyes, it is not worth the money.