Pore ​​care, please recommend an effective method and ampoule!

Once pores grow, it is difficult to get them back.
Enlarged pores are difficult to hide and make the skin look dull, so I want to learn how to manage pores systematically before it's too late.

What I'm most curious about is an effective pore care routine that I can implement in my daily life.
From cleansing methods to skincare steps, what should I focus on?
I would appreciate it if you could recommend a pore management ampoule that would be effective in tightening pores while helping to control sebum production and improve elasticity.
Please provide accurate pore care information for your precious skin.

And if you could tell me how to do the procedure, I would be grateful.