When managing blemishes in winter, is it right to use Meladuce Ampoule in parallel?

After lunch, my eyelids feel heavy because of the post-lunch drowsiness. Sitting in the warm office, I'm suddenly feeling sleepy, but then I see the winter sunlight streaming in through the window, and my concerns about blemishes come to mind. I'm curious about how everyone manages their blemishes in the winter. I recently purchased and started using the Meladuce Ampoule, but I'm wondering if changing my lifestyle will be more effective than simply applying cosmetics.

Even in winter, when sunlight is weak, sunscreen is essential. But does someone like me, who spends most of their time indoors, really need to reapply frequently? I'm also analyzing whether different day and night usage patterns are necessary to maximize the effectiveness of the Meladuce Ampoule. Some people say it's good to take it in conjunction with vitamin C, but does whitening products like the Meladuce Ampoule really synergize with oral supplements?

Logically, moisturizing seems important. My face gets so dry from the heater that it feels like the whitening ingredients aren't being absorbed properly. Would it be better to keep a humidifier close to my face, or to spray mist frequently? If you consistently use Meladuce Ampoules and have your own rules for preventing blemishes in your daily life, please share them! I'd love to wake up and discuss it in the comments.