I'm asking because I'm curious about reviews of the Quadsay treatment. Is it effective for hyperpigmentation as well?

Lately, while looking into various options for blemishes and hyperpigmentation, I discovered a procedure called Quad Say. I've been stressed because they are noticeable even when covered with makeup, so I saw a few reviews saying that Quad Say is good for improving skin tone. I was particularly worried because the hyperpigmentation on my cheekbones is especially dark.

I looked up reviews for the Quad Say treatment, and quite a few people said their skin tone brightened and texture improved. I'm asking because I'm curious if the effects are really that 확실 (certain/definite).

I’ve seen reviews mentioning a short downtime for Quadsay, so I’m wondering if that’s true and how many sessions are needed to see noticeable results. I’d also like to know about the treatment duration and price range, as well as if it’s okay to combine it with other whitening treatments.