i got these on a whim. i'd heard of the tech and it must have come up in an article or a facebook ad or something, i felt like why not. i've got one big dark spot from a real humdinger of a zit recently, plus a really old blob of melasma that nothing has really helped yet.
i am impressed. i have never used a product that made me go WHAT the next morning. like this did. it's not all gone, no. but for an overnight treatment, the lightening that happened was impressive. noticeable. the fact that it had an impact on both an OLD spot of melasma as well as a fresher darkening from a pimple impressed me quite a bit.
i will continue and see how much improvement i can get. but even after 2 treatments on 2 spots i can say this is a useful product and i will probably buy another pack or two at least.