ZBrushCentral

Zbrush distorted mesh/ artifacts?

Hello, First of all thanks for clicking at my question. So I was trying to sculpt a very basic face using one of Zbrush default mesh. Everything was cool until I realized there is some kind of distortion or artifacts on the model’s lips.
This is the model before retopology.
Capture d’écran (178).jpg
Capture d’écran (182).png
This is after retopology for a clearer view of the distortion
Capture d’écran (183).png
Do you know how we can fix this problem? I just started using Zbrush recently so everything is still so overwhelming haha. Thank you very much and have a nice day!

Attachments

Capture d’écran (178).jpg

Looks like the polygons are pinched together try using the smooth brush i.e holding shift and/or flip the polygons and smooth from the inside Tools>Display Properties >Flip