I recommend this lip concealer.

I like to neutralize my natural lip color before applying lip products!

I have been using lip concealers for a long time, and I have a product that I have loved and use for years, so I would like to recommend it.
It is the product called Innisfree Tok Tok Lip Concealer!

The downside is that you have to apply it with your fingers, but it's really effective at killing off lip color! Hahaha.

After moisturizing your lips with lip balm, lightly dab on some concealer before applying the lip product to bring out its true color!

It's affordable and mini-sized, so it's not a burden to carry around in a pouch.