I'm curious about how to cover lip color.

As you can see in the photo, my lip color is fading as I get older.

My natural lip color is on the darker side, so even when I apply lipstick, my lips look dull and lifeless.

I think I'm getting more wrinkles, too.

My lips look especially dull when I wear MLBB colors, so please recommend a lipstick shade or texture that can bring out my natural lip color.

I'm wondering if I need to use concealer as a base, and please also explain in detail how to do makeup to naturally enhance my complexion.