Whitening ampoule I bought with my own money

This is the Migu Hara Ultra Whitening Ampoule Origin, which I have emptied several bottles of. I wanted to use a whitening ampoule, so I bought this because it is the most famous product, and it was good. I heard that it is not good to expose whitening products to light after application, so right before bed, after washing my face and doing my basic skincare, I turned off all the lights, applied the Migu Hara Ultra Whitening Ampoule Origin, and went straight to sleep. The finish feels firm and bouncy, and since the ampoule is moisturizing, it hydrates well, so I like it.