Post-Ulthera + laser: what K-beauty products to maintain results?

I’m pretty familiar with Korean skincare, but after having kids (and getting older 😅), my skin has definitely lost some elasticity and developed some hyperpigmentation. I recently got Ulthera and had some pigmentation lasered off while I was in Korea, and now I’m trying to maintain my “new” skin until I go back next year.

I’m in my late 30s with dry to super dry skin, and I’m focusing mainly on hydration and anti-aging.

Any recommendations for products you love—cleansers, toners, serums, moisturizers, sunscreens—would be really appreciated!